[{"language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":" 1006","acknowledgement":"F.W. acknowledges support from NSF award AST-2513040. J.B.C. acknowledges funding from the JWST Arizona/Steward Postdoc in Early galaxies and Reionization (JASPER) Scholar contract at the University of Arizona. M.H. acknowledges support from the Swiss SNSF Starting Grant (grant no. 218032). S.E.I.B. is supported by the Deutsche Forschungsgemeinschaft (DFG) under Emmy Noether grant No. BO 5771/1-1. J.-T.S. is supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—project No. 518006966. A.L. acknowledges support from PRIN MUR 2022935STW. C.M. acknowledges support from Fondecyt Iniciacion grant 11240336 and the ANID BASAL project FB210003. R.A.M. acknowledges support from the Swiss National Science Foundation (SNSF) through project grant 200020_207349. B.T. acknowledges support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No. 950533) and from the Excellence Cluster ORIGINS, which is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC 2094—390783311. M.V. gratefully acknowledges financial support from the Independent Research Fund Denmark via grant Nos. DFF 8021-00130 and 3103-00146 and from the Carlsberg Foundation (grant CF23-0417).\r\n\r\nThis work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program #2078 and can be accessed via doi:10.17909/vt74-kd84. Support for program #2078 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127. We acknowledge the strong support provided by the program coordinator Weston Eck and instrument reviewers Norbert Pirzkal and Stephanie La Massa.","publication":"Astrophysical Journal","ddc":["520"],"volume":1006,"citation":{"ieee":"F. Wang et al., “ASPIRE: The environments and dark matter halos of luminous quasars in the epoch of reionization,” Astrophysical Journal, vol. 1006, no. 1. IOP Publishing, 2026.","ama":"Wang F, Champagne JB, Huang J, et al. ASPIRE: The environments and dark matter halos of luminous quasars in the epoch of reionization. Astrophysical Journal. 2026;1006(1). doi:10.3847/1538-4357/ae7bfa","short":"F. Wang, J.B. Champagne, J. Huang, J. Yang, J.F. Hennawi, X. Fan, H. Zhang, T. Costa, R. Decarli, M. Habouzit, F. Sun, E. Bañados, X. Jin, K. Kakiichi, R.A. Meyer, Y. Wu, S. Belladitta, L. Blecha, S.E.I. Bosman, Z. Cai, T. Connor, F.B. Davies, A.C. Eilers, Z. Haiman, H.D. Jun, M. Li, Z. Li, W. Liu, A. Lupi, J. Lyu, C. Mazzucchelli, M. Onoue, E. Pizzati, M. Pudoka, S. Rojas-Ruiz, J.T. Schindler, Y. Shen, W.L. Tee, B. Trakhtenbrot, M. Trebitsch, M. Vestergaard, M. Volonteri, F. Walter, H. Zhang, S. Zou, Astrophysical Journal 1006 (2026).","mla":"Wang, Feige, et al. “ASPIRE: The Environments and Dark Matter Halos of Luminous Quasars in the Epoch of Reionization.” Astrophysical Journal, vol. 1006, no. 1, 39, IOP Publishing, 2026, doi:10.3847/1538-4357/ae7bfa.","chicago":"Wang, Feige, Jaclyn B. Champagne, Jiamu Huang, Jinyi Yang, Joseph F. Hennawi, Xiaohui Fan, Haowen Zhang, et al. “ASPIRE: The Environments and Dark Matter Halos of Luminous Quasars in the Epoch of Reionization.” Astrophysical Journal. IOP Publishing, 2026. https://doi.org/10.3847/1538-4357/ae7bfa.","apa":"Wang, F., Champagne, J. B., Huang, J., Yang, J., Hennawi, J. F., Fan, X., … Zou, S. (2026). ASPIRE: The environments and dark matter halos of luminous quasars in the epoch of reionization. Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ae7bfa","ista":"Wang F, Champagne JB, Huang J, Yang J, Hennawi JF, Fan X, Zhang H, Costa T, Decarli R, Habouzit M, Sun F, Bañados E, Jin X, Kakiichi K, Meyer RA, Wu Y, Belladitta S, Blecha L, Bosman SEI, Cai Z, Connor T, Davies FB, Eilers AC, Haiman Z, Jun HD, Li M, Li Z, Liu W, Lupi A, Lyu J, Mazzucchelli C, Onoue M, Pizzati E, Pudoka M, Rojas-Ruiz S, Schindler JT, Shen Y, Tee WL, Trakhtenbrot B, Trebitsch M, Vestergaard M, Volonteri M, Walter F, Zhang H, Zou S. 2026. ASPIRE: The environments and dark matter halos of luminous quasars in the epoch of reionization. Astrophysical Journal. 1006(1), 39."},"type":"journal_article","date_published":"2026-07-20T00:00:00Z","article_number":"39","day":"20","doi":"10.3847/1538-4357/ae7bfa","researchdata_availability":"no","DOAJ_listed":"1","year":"2026","PlanS_conform":"1","OA_place":"publisher","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","das_tickbox":"1","_id":"22362","date_updated":"2026-07-20T13:31:18Z","publication_identifier":{"issn":["0004637X"],"eissn":["15384357"]},"month":"07","article_type":"original","file_date_updated":"2026-07-20T13:19:42Z","dataavailabilitystatement":"This paper makes use of the following ALMA data: ADS/JAO.ALMA#2022.1.01077.L. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), MOST and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.\r\n\r\nFacility: JWST - James Webb Space Telescope (NIRCam).\r\n\r\nSoftware: astropy (Astropy Collaboration et al. 2018), Matplotlib (J. D. Hunter 2007), Numpy (C. R. Harris et al. 2020), Photutils (L. Bradley et al. 2022), Scipy (P. Virtanen et al. 2020), Source Extractor (E. Bertin & S. Arnouts 1996).","file":[{"date_updated":"2026-07-20T13:19:42Z","file_size":6884305,"file_id":"22377","creator":"dernst","relation":"main_file","file_name":"2026_AstrophysicalJour_Wang.pdf","content_type":"application/pdf","checksum":"dd561fc00841217c227687e42d499ff0","success":1,"date_created":"2026-07-20T13:19:42Z","access_level":"open_access"}],"external_id":{"arxiv":["2602.04979"]},"abstract":[{"lang":"eng","text":"We present a systematic study of the environments of 25 luminous quasars at z > 6.5 from the ASPIRE program.\r\nUsing JWST/NIRCam wide-field slitless spectroscopy data, we identified 487 galaxies at 5.3 ≲ z ≲ 7.0 exhibiting\r\n[O III] emission. Among these, 122 [O III] emitters lie within |Δvlos| < 1000 km s\r\n−1 of the quasars, corresponding\r\nto a ∼9.4-fold enhancement relative to the average galaxy density at other redshifts. Furthermore, we identified 16\r\n[C II]-emitting galaxies at the quasar redshifts from Atacama Large Millimeter/submillimeter Array (ALMA) mosaic observations. A cross-correlation function analysis between quasars and [O III]+[C II] emitters yields a\r\ncross-correlation length of r 8.68 h cMpc 0\r\nQG\r\n0.55 = +0.51 1\r\nand an autocorrelation of r 15.76 h cMpc 0\r\nQQ\r\n2.70 = +2.48 1 ,\r\nindicating that z ∼ 7 quasars reside in dark matter halos with\r\nMhalo 1012.27 0.26 M 0.21\r\n= +\r\nand have a quasar lifetime of\r\ntQ 10 yr 7.05 1.01\r\n0.95\r\n= +\r\n. Notably, the number of [O III]-emitting galaxies at quasar redshifts varies significantly from\r\nfield to field, ranging from 0 to 20, highlighting a diverse quasar environment. Remarkably, seven quasars trace\r\nsignificant galaxy overdensities (i.e., protoclusters), with δgal > 5 within a volume of V ∼ 500 cMpc3\r\n. We also\r\nfind that |Δvlos| increases rapidly toward smaller galaxy–quasar separations in protocluster fields, consistent with\r\ngalaxy kinematics around extremely massive halos in cosmological simulations. By combining JWST and ALMA\r\ndata, we reveal the complex and diverse environments of these early quasars, providing robust evidence that the\r\nearliest luminous quasars are effective tracers of galaxy overdensities, albeit with substantial field-to-field\r\nvariation."}],"date_created":"2026-07-19T22:01:46Z","publication_status":"published","oa_version":"Published Version","title":"ASPIRE: The environments and dark matter halos of luminous quasars in the epoch of reionization","article_processing_charge":"Yes","arxiv":1,"issue":"1","OA_type":"gold","oa":1,"scopus_import":"1","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"status":"public","has_accepted_license":"1","department":[{"_id":"ZoHa"}],"publisher":"IOP Publishing","supplementarymaterial":"no","author":[{"full_name":"Wang, Feige","last_name":"Wang","first_name":"Feige"},{"full_name":"Champagne, Jaclyn B.","last_name":"Champagne","first_name":"Jaclyn B."},{"full_name":"Huang, Jiamu","last_name":"Huang","first_name":"Jiamu"},{"full_name":"Yang, Jinyi","first_name":"Jinyi","last_name":"Yang"},{"full_name":"Hennawi, Joseph F.","first_name":"Joseph F.","last_name":"Hennawi"},{"full_name":"Fan, Xiaohui","first_name":"Xiaohui","last_name":"Fan"},{"last_name":"Zhang","first_name":"Haowen","full_name":"Zhang, Haowen"},{"first_name":"Tiago","last_name":"Costa","full_name":"Costa, Tiago"},{"full_name":"Decarli, Roberto","last_name":"Decarli","first_name":"Roberto"},{"first_name":"Melanie","last_name":"Habouzit","full_name":"Habouzit, Melanie"},{"first_name":"Fengwu","last_name":"Sun","full_name":"Sun, Fengwu"},{"full_name":"Bañados, Eduardo","last_name":"Bañados","first_name":"Eduardo"},{"first_name":"Xiangyu","last_name":"Jin","full_name":"Jin, Xiangyu"},{"full_name":"Kakiichi, Koki","last_name":"Kakiichi","first_name":"Koki"},{"full_name":"Meyer, Romain A.","last_name":"Meyer","first_name":"Romain A."},{"last_name":"Wu","first_name":"Yunjing","full_name":"Wu, Yunjing"},{"full_name":"Belladitta, Silvia","last_name":"Belladitta","first_name":"Silvia"},{"first_name":"Laura","last_name":"Blecha","full_name":"Blecha, Laura"},{"first_name":"Sarah E.I.","last_name":"Bosman","full_name":"Bosman, Sarah E.I."},{"first_name":"Zheng","last_name":"Cai","full_name":"Cai, Zheng"},{"last_name":"Connor","first_name":"Thomas","full_name":"Connor, Thomas"},{"full_name":"Davies, Frederick B.","first_name":"Frederick B.","last_name":"Davies"},{"full_name":"Eilers, Anna Christina","first_name":"Anna Christina","last_name":"Eilers"},{"last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","first_name":"Zoltán","full_name":"Haiman, Zoltán","orcid":"0000-0003-3633-5403"},{"last_name":"Jun","first_name":"Hyunsung D.","full_name":"Jun, Hyunsung D."},{"first_name":"Mingyu","last_name":"Li","full_name":"Li, Mingyu"},{"full_name":"Li, Zihao","last_name":"Li","first_name":"Zihao"},{"first_name":"Weizhe","last_name":"Liu","full_name":"Liu, Weizhe"},{"first_name":"Alessandro","last_name":"Lupi","full_name":"Lupi, Alessandro"},{"first_name":"Jianwei","last_name":"Lyu","full_name":"Lyu, Jianwei"},{"full_name":"Mazzucchelli, Chiara","last_name":"Mazzucchelli","first_name":"Chiara"},{"full_name":"Onoue, Masafusa","last_name":"Onoue","first_name":"Masafusa"},{"last_name":"Pizzati","first_name":"Elia","full_name":"Pizzati, Elia"},{"first_name":"Maria","last_name":"Pudoka","full_name":"Pudoka, Maria"},{"first_name":"Sofía","last_name":"Rojas-Ruiz","full_name":"Rojas-Ruiz, Sofía"},{"first_name":"Jan Torge","last_name":"Schindler","full_name":"Schindler, Jan Torge"},{"first_name":"Yue","last_name":"Shen","full_name":"Shen, Yue"},{"full_name":"Tee, Wei Leong","last_name":"Tee","first_name":"Wei Leong"},{"first_name":"Benny","last_name":"Trakhtenbrot","full_name":"Trakhtenbrot, Benny"},{"last_name":"Trebitsch","first_name":"Maxime","full_name":"Trebitsch, Maxime"},{"last_name":"Vestergaard","first_name":"Marianne","full_name":"Vestergaard, Marianne"},{"full_name":"Volonteri, Marta","last_name":"Volonteri","first_name":"Marta"},{"full_name":"Walter, Fabian","first_name":"Fabian","last_name":"Walter"},{"full_name":"Zhang, Huanian","first_name":"Huanian","last_name":"Zhang"},{"last_name":"Zou","first_name":"Siwei","full_name":"Zou, Siwei"}]},{"dataavailabilitystatement":"Software: dustyGadget (L. Graziani et al. 2020), BPASSv2.2.134 (J. J. Eldridge et al. 2017; E. R. Stanway & J. J. Eldridge 2018), Yggdrasil35 (E. Zackrisson et al. 2011), Cloudy22.0136 (G. J. Ferland et al. 2017), NumPy37 (S. van der Walt et al. 2011; C. R. Harris et al. 2020), matplotlib38 (J. D. Hunter 2007), SciPy39 (Jones et al. 2001; P. Virtanen et al. 2020).","file_date_updated":"2026-07-20T13:05:27Z","article_type":"original","file":[{"date_updated":"2026-07-20T13:05:27Z","file_id":"22375","file_size":2267572,"creator":"dernst","content_type":"application/pdf","relation":"main_file","file_name":"2026_AstrophysicalJour_Venditti.pdf","date_created":"2026-07-20T13:05:27Z","success":1,"access_level":"open_access","checksum":"e783c9c10cf773482ac2f3b340ad130b"}],"external_id":{"arxiv":["2603.27582"]},"abstract":[{"text":"Finding the first generation of (Population III or Pop III) stars is one of the most ambitious and exciting challenges of astrophysics. JWST opened concrete prospects for their detection during the Epoch of Reionization, where increasing evidence suggests that residual Pop III formation may persist, even within pristine pockets of high-mass halos, due to inhomogeneous enrichment. However, the identification of Pop III stars within globally enriched environments will be challenging. We investigate the detectability of a subdominant Pop III component in/around massive (M⋆ ≳ 10^9 M⊙) galaxies at z ≈ 6.5–9 from the dustyGadget cosmological simulation suite, and the confusion arising from second-generation (Pop II) stars in their surroundings. We find that young (≲1 Myr), massive (MIII ∼ 6 × 10^5 M⊙) Pop III clusters forming within these galaxy environments are responsible for strong HeII1640 line emission (LHeII1640 ≳ 10^41 erg ^s−1), which would be detectable with ≈10(50) hr of medium-resolution observations with NIRSpec/IFU at z ≈ 6(10). These bright luminosities cannot be produced by standard Pop II populations alone. On the other hand, the dominant Pop II component within massive “hybrid” Pop III hosts powers strong metal line emission (L[OIII]5007 ≳ 10^42 erg s^−1), indicating that the detection of metal lines alone cannot exclude the presence of Pop IIIs in high-z galaxy environments. We further discuss candidate selection strategies based on Lyα, Hα, and Hβ emission, and how spatially resolved observations may enable the detection of isolated, pristine pockets in the outskirts of massive halos.","lang":"eng"}],"publication_status":"published","date_created":"2026-07-19T22:01:46Z","oa_version":"Published Version","arxiv":1,"article_processing_charge":"Yes","title":"Catching the nebular needle in a polluted haystack: Line-emission signatures from population III-forming pockets around massive galaxies at the end of reionization","issue":"2","OA_type":"gold","scopus_import":"1","oa":1,"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"status":"public","has_accepted_license":"1","publisher":"IOP Publishing","department":[{"_id":"JoMa"}],"supplementarymaterial":"yes","author":[{"first_name":"Alessandra","last_name":"Venditti","full_name":"Venditti, Alessandra"},{"full_name":"Graziani, Luca","first_name":"Luca","last_name":"Graziani"},{"first_name":"Raffaella","last_name":"Schneider","full_name":"Schneider, Raffaella"},{"last_name":"Bromm","first_name":"Volker","full_name":"Bromm, Volker"},{"full_name":"Muñoz, Julian B.","last_name":"Muñoz","first_name":"Julian B."},{"last_name":"Di Cesare","id":"2d002343-372f-11ef-98ec-a164d20427cb","first_name":"Claudia","full_name":"Di Cesare, Claudia"},{"first_name":"Rosa","last_name":"Valiante","full_name":"Valiante, Rosa"},{"full_name":"Calabrò, Antonello","first_name":"Antonello","last_name":"Calabrò"},{"full_name":"Maiolino, Roberto","last_name":"Maiolino","first_name":"Roberto"},{"first_name":"Steven L.","last_name":"Finkelstein","full_name":"Finkelstein, Steven L."},{"first_name":"Massimiliano","last_name":"Parente","full_name":"Parente, Massimiliano"},{"first_name":"Matteo","last_name":"Saggini","full_name":"Saggini, Matteo"},{"first_name":"John","last_name":"Chisholm","full_name":"Chisholm, John"}],"project":[{"grant_number":"101076224","name":"Young galaxies as tracers and agents of cosmic reionization","_id":"bd9b2118-d553-11ed-ba76-db24564edfea"}],"quality_controlled":"1","language":[{"iso":"eng"}],"publication":"The Astrophysical Journal","acknowledgement":"We thank Elka Rusta and Stefania Salvadori for providing predictions of the He II line luminosities from the NEFERTITI model. A.V. acknowledges funding from the Cosmic Frontier Center and the University of Texas at Austin’s College of Natural Sciences. A.V., L.G., and R.S. acknowledge support from the PRIN 2022 MUR project 2022CB3PJ3—First Light And Galaxy aSsembly (FLAGS) funded by the European Union—Next Generation EU. J.B.M. was supported by NSF Grants AST-2307354 and AST-2408637, and by the NSF-Simons AI Institute for Cosmic Origins. This research was also supported in part by grant NSF PHY-2309135 to the Kavli Institute for Theoretical Physics (KITP). R.V. acknowledges support from PRIN MUR “2022935STW” funded by European Union-Next Generation EU, Missione 4 Componente 2 CUP C53D23000950006 and from Bando Ricerca Fondamentale INAF 2023, Theory Grant “Theoretical models for Black Holes Archaeology.\" C.D.C. acknowledges support from the European Union (ERC, AGENTS, 101076224).","intvolume":" 1005","volume":1005,"ddc":["520"],"type":"journal_article","citation":{"ista":"Venditti A, Graziani L, Schneider R, Bromm V, Muñoz JB, Di Cesare C, Valiante R, Calabrò A, Maiolino R, Finkelstein SL, Parente M, Saggini M, Chisholm J. 2026. Catching the nebular needle in a polluted haystack: Line-emission signatures from population III-forming pockets around massive galaxies at the end of reionization. The Astrophysical Journal. 1005(2), 226.","apa":"Venditti, A., Graziani, L., Schneider, R., Bromm, V., Muñoz, J. B., Di Cesare, C., … Chisholm, J. (2026). Catching the nebular needle in a polluted haystack: Line-emission signatures from population III-forming pockets around massive galaxies at the end of reionization. The Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ae7b2c","mla":"Venditti, Alessandra, et al. “Catching the Nebular Needle in a Polluted Haystack: Line-Emission Signatures from Population III-Forming Pockets around Massive Galaxies at the End of Reionization.” The Astrophysical Journal, vol. 1005, no. 2, 226, IOP Publishing, 2026, doi:10.3847/1538-4357/ae7b2c.","chicago":"Venditti, Alessandra, Luca Graziani, Raffaella Schneider, Volker Bromm, Julian B. Muñoz, Claudia Di Cesare, Rosa Valiante, et al. “Catching the Nebular Needle in a Polluted Haystack: Line-Emission Signatures from Population III-Forming Pockets around Massive Galaxies at the End of Reionization.” The Astrophysical Journal. IOP Publishing, 2026. https://doi.org/10.3847/1538-4357/ae7b2c.","short":"A. Venditti, L. Graziani, R. Schneider, V. Bromm, J.B. Muñoz, C. Di Cesare, R. Valiante, A. Calabrò, R. Maiolino, S.L. Finkelstein, M. Parente, M. Saggini, J. Chisholm, The Astrophysical Journal 1005 (2026).","ama":"Venditti A, Graziani L, Schneider R, et al. Catching the nebular needle in a polluted haystack: Line-emission signatures from population III-forming pockets around massive galaxies at the end of reionization. The Astrophysical Journal. 2026;1005(2). doi:10.3847/1538-4357/ae7b2c","ieee":"A. Venditti et al., “Catching the nebular needle in a polluted haystack: Line-emission signatures from population III-forming pockets around massive galaxies at the end of reionization,” The Astrophysical Journal, vol. 1005, no. 2. IOP Publishing, 2026."},"date_published":"2026-07-10T00:00:00Z","article_number":"226","day":"10","researchdata_availability":"no","doi":"10.3847/1538-4357/ae7b2c","DOAJ_listed":"1","year":"2026","OA_place":"publisher","PlanS_conform":"1","das_tickbox":"1","_id":"22364","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-07-20T13:07:08Z","publication_identifier":{"issn":["0004-637X"],"eissn":["1538-4357"]},"month":"07"},{"author":[{"first_name":"Chamilla","last_name":"Terp","full_name":"Terp, Chamilla"},{"full_name":"Heintz, Kasper E.","first_name":"Kasper E.","last_name":"Heintz"},{"last_name":"Matthee","id":"7439a258-f3c0-11ec-9501-9df22fe06720","first_name":"Jorryt J","orcid":"0000-0003-2871-127X","full_name":"Matthee, Jorryt J"},{"first_name":"Rohan P.","last_name":"Naidu","full_name":"Naidu, Rohan P."},{"full_name":"Oesch, Pascal A.","first_name":"Pascal A.","last_name":"Oesch"},{"first_name":"Callum","last_name":"Witten","full_name":"Witten, Callum"},{"first_name":"Daichi","last_name":"Kashino","full_name":"Kashino, Daichi"},{"full_name":"Pollock, Clara L.","first_name":"Clara L.","last_name":"Pollock"},{"full_name":"Di Cesare, Claudia","last_name":"Di Cesare","id":"2d002343-372f-11ef-98ec-a164d20427cb","first_name":"Claudia"},{"full_name":"Torralba Torregrosa, Alberto","orcid":"0000-0001-5586-6950","id":"018f0249-0e87-11f0-b167-cbce08fbd541","first_name":"Alberto","last_name":"Torralba Torregrosa"}],"publisher":"EDP Sciences","department":[{"_id":"JoMa"}],"supplementarymaterial":"yes","has_accepted_license":"1","status":"public","oa":1,"scopus_import":"1","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"OA_type":"diamond","date_created":"2026-07-19T22:01:47Z","oa_version":"Published Version","publication_status":"published","article_processing_charge":"No","title":"All the massive galaxy overdensities during reionisation: JWST rest-frame optical selection reveals young, chemically evolved galaxies embedded in dense, neutral gas at z > 5","file":[{"checksum":"0a63db666cfac8e4e6271b75419a26f2","date_created":"2026-07-20T13:41:19Z","success":1,"access_level":"open_access","creator":"dernst","file_name":"2026_AstronomyAstrophysics_Terp.pdf","relation":"main_file","content_type":"application/pdf","file_size":6156048,"file_id":"22378","date_updated":"2026-07-20T13:41:19Z"}],"abstract":[{"text":"The high-redshift progenitors of present-day galaxy clusters are believed to substantially contribute to the global star formation rate density and drive the large-scale reionisation of the Universe. Here we present a blind and unbiased search for and characterisation of galaxy overdensities during the reionisation epoch at redshifts z ∼ 5.5 − 7 based on rest-frame optical JWST/NIRCam grism spectroscopy of the Abell 2744 lensing field as part of the JWST All the Little Things (ALT) survey. Using a physically motivated, cosmological inference friends-of-friends (FoF) algorithm, we identified six galaxy overdensities, including five robust systems at z = 5.66–6.77. They are all characterised by total halo masses of Mhalo ≳ 1011 M⊙, inferred from a range of proxies. We find that the galaxy members in these overdense environments are on average less massive though equally metal-rich, and generally comprised of younger stellar populations, as indicated by their bluer spectral slopes and less prominent Balmer breaks compared to field galaxies at similar redshifts. Further, we use this novel rest-frame optical selection of galaxy proto-clusters to infer the fraction and 3D distribution of strong Lyman-α emitters (LAEs) and damped Lyman-α absorbers (DLAs) in the overdensity environments. We find that two out of the six galaxy overdensities have excess H I absorption compared to the field average, while the other four are consistent within their large scatter in density. These results present the first direct observational constraints on the tomography of the dense, neutral gas reservoirs in large-scale galaxy overdensities at z > 5 and highlight the limitations of pre-JWST searches for reionisation-era galaxy overdensities relying on the detection of strong LAEs alone.","lang":"eng"}],"article_type":"original","file_date_updated":"2026-07-20T13:41:19Z","dataavailabilitystatement":"The specific observations analysed in this work can be accessed via https://doi.org/10.5281/zenodo.13871850","month":"06","publication_identifier":{"issn":["0004-6361"],"eissn":["1432-0746"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","das_tickbox":"1","_id":"22369","date_updated":"2026-07-20T13:42:20Z","year":"2026","PlanS_conform":"1","OA_place":"publisher","researchdata_availability":"yes","doi":"10.1051/0004-6361/202659436","date_published":"2026-06-01T00:00:00Z","article_number":"A290","day":"01","ddc":["520"],"volume":710,"citation":{"apa":"Terp, C., Heintz, K. E., Matthee, J. J., Naidu, R. P., Oesch, P. A., Witten, C., … Torralba Torregrosa, A. (2026). All the massive galaxy overdensities during reionisation: JWST rest-frame optical selection reveals young, chemically evolved galaxies embedded in dense, neutral gas at z > 5. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/202659436","ista":"Terp C, Heintz KE, Matthee JJ, Naidu RP, Oesch PA, Witten C, Kashino D, Pollock CL, Di Cesare C, Torralba Torregrosa A. 2026. All the massive galaxy overdensities during reionisation: JWST rest-frame optical selection reveals young, chemically evolved galaxies embedded in dense, neutral gas at z > 5. Astronomy & Astrophysics. 710, A290.","ieee":"C. Terp et al., “All the massive galaxy overdensities during reionisation: JWST rest-frame optical selection reveals young, chemically evolved galaxies embedded in dense, neutral gas at z > 5,” Astronomy & Astrophysics, vol. 710. EDP Sciences, 2026.","mla":"Terp, Chamilla, et al. “All the Massive Galaxy Overdensities during Reionisation: JWST Rest-Frame Optical Selection Reveals Young, Chemically Evolved Galaxies Embedded in Dense, Neutral Gas at z > 5.” Astronomy & Astrophysics, vol. 710, A290, EDP Sciences, 2026, doi:10.1051/0004-6361/202659436.","chicago":"Terp, Chamilla, Kasper E. Heintz, Jorryt J Matthee, Rohan P. Naidu, Pascal A. Oesch, Callum Witten, Daichi Kashino, Clara L. Pollock, Claudia Di Cesare, and Alberto Torralba Torregrosa. “All the Massive Galaxy Overdensities during Reionisation: JWST Rest-Frame Optical Selection Reveals Young, Chemically Evolved Galaxies Embedded in Dense, Neutral Gas at z > 5.” Astronomy & Astrophysics. EDP Sciences, 2026. https://doi.org/10.1051/0004-6361/202659436.","ama":"Terp C, Heintz KE, Matthee JJ, et al. All the massive galaxy overdensities during reionisation: JWST rest-frame optical selection reveals young, chemically evolved galaxies embedded in dense, neutral gas at z > 5. Astronomy & Astrophysics. 2026;710. doi:10.1051/0004-6361/202659436","short":"C. Terp, K.E. Heintz, J.J. Matthee, R.P. Naidu, P.A. Oesch, C. Witten, D. Kashino, C.L. Pollock, C. Di Cesare, A. Torralba Torregrosa, Astronomy & Astrophysics 710 (2026)."},"type":"journal_article","language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":" 710","publication":"Astronomy & Astrophysics","acknowledgement":"We would like to thank the anonymous referee for their positive and constructive report and all the observers world-wide for their substantial effort in securing all the public JWST data that were essential for this work. The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant DNRF140. KEH acknowledges support from the Independent Research Fund Denmark (DFF) under grant 5251-00009B and co-funding by the European Union (ERC, HEAVYMETAL, 101071865). Views and opinions expressed are, however, those of the authors only and do not necessarily reflect those of the European Union or the European Research Council. Neither the European Union nor the granting authority can be held responsible for them. This work is based in part on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes (MAST) at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. We used the following software for this work: Python, and the scientific Python ecosystem, in particular NumPy (Harris et al. 2020), SciPy (including cKDTree) (Virtanen et al. 2021), Matplotlib (Hunter 2007), and Astropy (Astropy Collaboration 2013, 2018, 2022)."},{"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"oa":1,"scopus_import":"1","status":"public","has_accepted_license":"1","publisher":"Elsevier","department":[{"_id":"JaMa"}],"author":[{"full_name":"Beiglböck, Mathias","last_name":"Beiglböck","first_name":"Mathias"},{"last_name":"Pflügl","id":"8da18bd3-8437-11f1-a311-c814b8b76424","first_name":"Susanne","full_name":"Pflügl, Susanne"},{"full_name":"Schrott, Stefan","first_name":"Stefan","last_name":"Schrott"}],"article_type":"original","external_id":{"arxiv":["2406.19810"]},"abstract":[{"text":"Causal optimal transport and adapted Wasserstein distance have applications in different fields from optimization to mathematical finance and machine learning. The goal of this article is to provide equivalent formulations of these concepts in classic probabilistic language. In particular, we prove a Skorokhod representation theorem for adapted weak convergence, reformulate the equivalence of stochastic processes using Markovian lifts, and give an expression for the adapted Wasserstein distance based on representing processes on a common stochastic basis.","lang":"eng"}],"title":"A probabilistic view on the adapted Wasserstein distance","article_processing_charge":"Yes (in subscription journal)","arxiv":1,"oa_version":"Published Version","date_created":"2026-07-19T22:01:45Z","publication_status":"epub_ahead","OA_type":"hybrid","PlanS_conform":"1","OA_place":"publisher","year":"2026","date_updated":"2026-07-20T12:46:53Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","das_tickbox":"1","_id":"22361","publication_identifier":{"issn":["0304-4149"]},"month":"07","intvolume":" 201","acknowledgement":"This research was funded in whole or in part by the Austrian Science Fund (FWF) [doi: 10.55776/P34743, 10.55776/Y782, 10.55776/P35197 and 10.55776/J4981]. For open access purposes, the author has applied a CC BY public copyright license to any author accepted manuscript version arising from this submission.","publication":"Stochastic Processes and their Applications","language":[{"iso":"eng"}],"quality_controlled":"1","type":"journal_article","citation":{"ieee":"M. Beiglböck, S. Pflügl, and S. Schrott, “A probabilistic view on the adapted Wasserstein distance,” Stochastic Processes and their Applications, vol. 201. Elsevier, 2026.","short":"M. Beiglböck, S. Pflügl, S. Schrott, Stochastic Processes and Their Applications 201 (2026).","ama":"Beiglböck M, Pflügl S, Schrott S. A probabilistic view on the adapted Wasserstein distance. Stochastic Processes and their Applications. 2026;201. doi:10.1016/j.spa.2026.105032","chicago":"Beiglböck, Mathias, Susanne Pflügl, and Stefan Schrott. “A Probabilistic View on the Adapted Wasserstein Distance.” Stochastic Processes and Their Applications. Elsevier, 2026. https://doi.org/10.1016/j.spa.2026.105032.","mla":"Beiglböck, Mathias, et al. “A Probabilistic View on the Adapted Wasserstein Distance.” Stochastic Processes and Their Applications, vol. 201, 105032, Elsevier, 2026, doi:10.1016/j.spa.2026.105032.","apa":"Beiglböck, M., Pflügl, S., & Schrott, S. (2026). A probabilistic view on the adapted Wasserstein distance. Stochastic Processes and Their Applications. Elsevier. https://doi.org/10.1016/j.spa.2026.105032","ista":"Beiglböck M, Pflügl S, Schrott S. 2026. A probabilistic view on the adapted Wasserstein distance. Stochastic Processes and their Applications. 201, 105032."},"ddc":["500"],"volume":201,"day":"10","date_published":"2026-07-10T00:00:00Z","article_number":"105032","main_file_link":[{"url":"https://doi.org/10.1016/j.spa.2026.105032","open_access":"1"}],"doi":"10.1016/j.spa.2026.105032"},{"publisher":"Springer Nature","department":[{"_id":"FlSc"}],"supplementarymaterial":"yes","author":[{"full_name":"Lin, Tien Chen","last_name":"Lin","first_name":"Tien Chen"},{"first_name":"Charlotte H.","last_name":"Coles","full_name":"Coles, Charlotte H."},{"last_name":"Alfadil","first_name":"Eissa","full_name":"Alfadil, Eissa"},{"full_name":"Fäßler, Florian","orcid":"0000-0001-7149-769X","first_name":"Florian","id":"404F5528-F248-11E8-B48F-1D18A9856A87","last_name":"Fäßler"},{"full_name":"Husch, Andreas","first_name":"Andreas","last_name":"Husch"},{"full_name":"Dupraz, Sebastian","first_name":"Sebastian","last_name":"Dupraz"},{"full_name":"Pietralla, Thorben","last_name":"Pietralla","first_name":"Thorben"},{"full_name":"Narita, Akihiro","last_name":"Narita","first_name":"Akihiro"},{"full_name":"Schelski, Max","first_name":"Max","last_name":"Schelski"},{"full_name":"Flynn, Kevin C.","first_name":"Kevin C.","last_name":"Flynn"},{"full_name":"Stern, Sina","last_name":"Stern","first_name":"Sina"},{"full_name":"Möhl, Christoph","first_name":"Christoph","last_name":"Möhl"},{"first_name":"Brett J.","last_name":"Hilton","full_name":"Hilton, Brett J."},{"full_name":"Vauti, Franz","last_name":"Vauti","first_name":"Franz"},{"full_name":"Arnold, Hans Henning","first_name":"Hans Henning","last_name":"Arnold"},{"full_name":"Schur, Florian Km","orcid":"0000-0003-4790-8078","last_name":"Schur","first_name":"Florian Km","id":"48AD8942-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Bradke","first_name":"Frank","full_name":"Bradke, Frank"}],"project":[{"_id":"9B954C5C-BA93-11EA-9121-9846C619BF3A","name":"Structure and isoform diversity of the Arp2/3 complex","grant_number":"P33367"}],"scopus_import":"1","oa":1,"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"status":"public","has_accepted_license":"1","oa_version":"Published Version","date_created":"2026-07-19T22:01:48Z","publication_status":"epub_ahead","article_processing_charge":"Yes (via OA deal)","title":"An intrinsic cytoskeletal oscillator establishes neuronal polarity","OA_type":"hybrid","dataavailabilitystatement":"The raw data of the representative images have been deposited into Zenodo (https://doi.org/10.5281/zenodo.20118606)99. Owing to the large file size of the raw image data and the processed data used in the analyses that generated the graphs, we archived the image files in the read-only file archive at the DZNE institute. We provide raw data files upon request. The request can be directed to and will be fulfilled by the lead contact F.B. Source data are provided with this paper. The custom ImageJ macro used for generating kymographs, extracting neurite tip positions and protein intensities is available at GitHub (https://github.com/darkbreaker0/IJ_NeuriteGrowthScript) and Zenodo (https://doi.org/10.5281/zenodo.20118606)99. The custom R and Python scripts used in the study are available at GitHub (https://github.com/darkbreaker0/Arp3_neuronal_polarization_2026) and Zenodo (https://doi.org/10.5281/zenodo.20118606)99. The code used for polarity determination of the actin filament in tomograms is available at Zenodo (https://doi.org/10.5281/zenodo.20081075)93.","article_type":"original","pmid":1,"abstract":[{"lang":"eng","text":"Neurons acquire polarity by specifying one neurite as the axon, whereas the others become dendrites. But how this fundamental asymmetry is established remains unclear1. Neuronal polarization has been thought to rely primarily on growth cones that sense external cues2. Here we show that growth cones alone do not direct this process and that the soma acts as a central organizer of neuronal polarization. Using live imaging and genetic loss-of-function approaches in vivo, combined with optogenetic control and local cytoskeletal perturbations in cultured neurons, we uncover a soma-initiated oscillatory program that primes axon selection. Periodic actin branching that depends on the actin-related protein 2/3 (ARP2/3) complex at the soma remodels a global actomyosin network, thereby generating an actin wave that retracts neurites before propagating into a single neurite tip. Exposure to this wave relaxes local actomyosin contractility, which drives a transient microtubule-based protrusion and biases this neurite towards axon fate. As the cell exits this oscillatory stage, this neurite can overcome global inhibition and extend independently of ARP2/3, whereas actomyosin activity suppresses axon formation in the remaining neurites so that they subsequently become dendrites. This soma-driven mechanism ensures the emergence of a single axon independent of environmental cues and underpins the unidirectional information flow in neuronal circuits."}],"external_id":{"pmid":["42420447"]},"publication_identifier":{"eissn":["1476-4687"],"issn":["0028-0836"]},"month":"07","year":"2026","OA_place":"publisher","PlanS_conform":"1","_id":"22372","das_tickbox":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-07-20T14:18:10Z","main_file_link":[{"url":"https://doi.org/10.1038/s41586-026-10755-6","open_access":"1"}],"date_published":"2026-07-08T00:00:00Z","day":"08","researchdata_availability":"yes","doi":"10.1038/s41586-026-10755-6","quality_controlled":"1","language":[{"iso":"eng"}],"publication":"Nature","acknowledgement":"We thank O. Gruss, E. Handley, H. Herzel, A. Kania, A. Koseska, E. Kiermaier, D. Manstein, C. Niessen, K. Rottner, J. Schiweck, G. Tavosanis, D. Wachten, R. Wedlich-Söldner and W. Witke for critically reading and discussing the manuscript; C. Günter and V. Štimac for feedback on data presentation; B. Randel, J. Benner, L. Meyn and A.-T. Pham for technical assistance; L. M. Neußer, K. Herz, K. Van-De-Kamp and M. Diwo for their support on mice maintenance; H. Fried, I. Koenig, S. Filser and Y. Fu for their technical support on experimental setup; and M. Aghabeig for writing the Fiji macro scripts. C.H.C. was a Human Frontier Science Program Long-term Postdoctoral Fellow (LT000100/2013). F.B. is supported by the Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), the International Foundation for Research in Paraplegia, Wings for Life, ERANET AXON REPAIR, ERANET RATER SCI and the Chan–Zuckerberg Initiative (CZI). F.B. is also funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)–Project-ID 227953431–SFB 1089, SFB 1690 as well as SFB 1158 and SPP 2395. F.B. is a member of the excellence cluster ImmunoSensation2 (EXC2151–390873048) and the iBehave NRW network. F.B. is a recipient of the Roger de Spoelberch Prize. F.K.M.S. acknowledges support from Austrian Science Fund (FWF): P33367. A.N. is supported by JSPS KAKENHI (grant numbers 18H02410 and 21H02440). Open access funding provided by Deutsches Zentrum für Neurodegenerative Erkrankungen e.V. (DZNE) in der Helmholtz-Gemeinschaft.","ddc":["570"],"type":"journal_article","citation":{"apa":"Lin, T. C., Coles, C. H., Alfadil, E., Fäßler, F., Husch, A., Dupraz, S., … Bradke, F. (2026). An intrinsic cytoskeletal oscillator establishes neuronal polarity. Nature. Springer Nature. https://doi.org/10.1038/s41586-026-10755-6","ista":"Lin TC, Coles CH, Alfadil E, Fäßler F, Husch A, Dupraz S, Pietralla T, Narita A, Schelski M, Flynn KC, Stern S, Möhl C, Hilton BJ, Vauti F, Arnold HH, Schur FK, Bradke F. 2026. An intrinsic cytoskeletal oscillator establishes neuronal polarity. Nature.","ieee":"T. C. Lin et al., “An intrinsic cytoskeletal oscillator establishes neuronal polarity,” Nature. Springer Nature, 2026.","chicago":"Lin, Tien Chen, Charlotte H. Coles, Eissa Alfadil, Florian Fäßler, Andreas Husch, Sebastian Dupraz, Thorben Pietralla, et al. “An Intrinsic Cytoskeletal Oscillator Establishes Neuronal Polarity.” Nature. Springer Nature, 2026. https://doi.org/10.1038/s41586-026-10755-6.","mla":"Lin, Tien Chen, et al. “An Intrinsic Cytoskeletal Oscillator Establishes Neuronal Polarity.” Nature, Springer Nature, 2026, doi:10.1038/s41586-026-10755-6.","short":"T.C. Lin, C.H. Coles, E. Alfadil, F. Fäßler, A. Husch, S. Dupraz, T. Pietralla, A. Narita, M. Schelski, K.C. Flynn, S. Stern, C. Möhl, B.J. Hilton, F. Vauti, H.H. Arnold, F.K. Schur, F. Bradke, Nature (2026).","ama":"Lin TC, Coles CH, Alfadil E, et al. An intrinsic cytoskeletal oscillator establishes neuronal polarity. Nature. 2026. doi:10.1038/s41586-026-10755-6"}},{"date_updated":"2026-07-20T14:58:23Z","_id":"22255","supervisor":[{"first_name":"Vadim","id":"FE553552-CDE8-11E9-B324-C0EBE5697425","last_name":"Kaloshin","orcid":"0000-0002-6051-2628","full_name":"Kaloshin, Vadim"}],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","OA_place":"publisher","year":"2026","acknowledged_ssus":[{"_id":"E-Lib"},{"_id":"CampIT"}],"month":"07","publication_identifier":{"issn":["2663-337X"]},"ec_funded":1,"citation":{"chicago":"Li, Yunzhe. “Spectral Rigidity and Nonrigidity of Dynamical Systems.” Institute of Science and Technology Austria, 2026. https://doi.org/10.15479/AT-ISTA-22255.","mla":"Li, Yunzhe. Spectral Rigidity and Nonrigidity of Dynamical Systems. Institute of Science and Technology Austria, 2026, doi:10.15479/AT-ISTA-22255.","ama":"Li Y. Spectral rigidity and nonrigidity of dynamical systems. 2026. doi:10.15479/AT-ISTA-22255","short":"Y. Li, Spectral Rigidity and Nonrigidity of Dynamical Systems, Institute of Science and Technology Austria, 2026.","ieee":"Y. Li, “Spectral rigidity and nonrigidity of dynamical systems,” Institute of Science and Technology Austria, 2026.","ista":"Li Y. 2026. Spectral rigidity and nonrigidity of dynamical systems. Institute of Science and Technology Austria.","apa":"Li, Y. (2026). Spectral rigidity and nonrigidity of dynamical systems. Institute of Science and Technology Austria. https://doi.org/10.15479/AT-ISTA-22255"},"type":"dissertation","ddc":["515"],"acknowledgement":"The financial support of the ERC grant SPERIG #885707 is gratefully acknowledged.\r\n","language":[{"iso":"eng"}],"doi":"10.15479/AT-ISTA-22255","day":"11","date_published":"2026-07-11T00:00:00Z","status":"public","has_accepted_license":"1","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"oa":1,"alternative_title":["ISTA Thesis"],"author":[{"full_name":"Li, Yunzhe","last_name":"Li","id":"41cb05d3-f128-11eb-9611-e4e2b3cfba31","first_name":"Yunzhe"}],"corr_author":"1","project":[{"_id":"9B8B92DE-BA93-11EA-9121-9846C619BF3A","call_identifier":"H2020","grant_number":"885707","name":"Spectral rigidity and integrability for billiards and geodesic flows"}],"publisher":"Institute of Science and Technology Austria","department":[{"_id":"GradSch"},{"_id":"VaKa"}],"page":"131","abstract":[{"lang":"eng","text":"This thesis studies spectral rigidity and nonrigidity phenomena in dynamical systems. The central question is whether a dynamical system can be determined, up to a natural conjugacy, from its spectrum. We consider three related spectra: the length spectrum, the action spectrum, and the Lyapunov spectrum.\r\n\r\nThe first part of the thesis concerns Liouville metrics on the two-dimensional torus. It is a long-standing folklore conjecture that Liouville metrics are the only integrable metrics on the torus. We prove a length-spectral rigidity result for linear conformal deformations of Liouville metrics by exploiting the dynamical properties of the rational tori -- analogues of the resonant convex caustics in billiards. We also establish a complementary classification result showing that marked-length-isospectral Liouville metrics are characterized by rearrangements of the one-dimensional functions appearing in their conformal factors, generalizing a theorem of Abbondandolo-Mazzucchelli. In particular, the second result gives nonrigidity examples within the class of Liouville metrics.\r\n\r\nThe second part of the thesis studies the standard map from the viewpoint of action and Lyapunov spectra. We construct nontrivial deformations of the standard map which preserve the symplectic actions (respectively, the Lyapunov exponents) of infinitely many periodic orbits accumulating on an invariant curve. The proof combines a resonant normal form construction with Picard iteration schemes to obtain a sequence of periodic orbits accumulating on an invariant curve with a Liouville rotation number. Within the resonant normal forms we capture the dependence of these periodic orbits on the resonant Fourier coefficients of the dynamics on the invariant curve and, using the contraction mapping principle, obtain a suitable deformation achieving the prescribed spectral data associated with this sequence of orbits. The result can be viewed as a symplectic twist-map analogue of a length-spectral nonrigidity phenomenon for Riemannian manifolds and convex billiards, and it motivates the existence problem for similar 'partially length-isospectral' deformations of strictly convex billiard tables.\r\n"}],"file":[{"checksum":"8201cb5a427656a41828ecde8a85c04b","date_created":"2026-07-14T10:48:45Z","access_level":"open_access","creator":"yli","relation":"main_file","content_type":"application/pdf","file_name":"2026_Li_Yunzhe_Thesis.pdf","file_size":1260717,"file_id":"22337","date_updated":"2026-07-14T10:48:45Z"},{"date_updated":"2026-07-20T14:00:33Z","file_size":418752,"file_id":"22339","creator":"yli","file_name":"2026_Li_Yunzhe_Thesis.zip","content_type":"application/x-zip-compressed","relation":"source_file","checksum":"19ee8461ed77f5b7980fc9461f778b6f","date_created":"2026-07-14T11:07:18Z","access_level":"closed"}],"file_date_updated":"2026-07-20T14:00:33Z","doi_confirm":"1","degree_awarded":"PhD","article_processing_charge":"No","title":"Spectral rigidity and nonrigidity of dynamical systems","oa_version":"Published Version","date_created":"2026-07-08T12:44:31Z","publication_status":"published","related_material":{"record":[{"id":"22340","status":"public","relation":"part_of_dissertation"},{"status":"public","relation":"part_of_dissertation","id":"22341"}]}},{"publisher":"Springer Nature","department":[{"_id":"MiSi"}],"supplementarymaterial":"yes","author":[{"full_name":"Dehio, Philippe G","last_name":"Dehio","first_name":"Philippe G","id":"b769738e-a003-11ee-b1b8-9030316e0d59"},{"full_name":"Michard, Céline","last_name":"Michard","first_name":"Céline"},{"full_name":"Yam-Puc, Juan Carlos","first_name":"Juan Carlos","last_name":"Yam-Puc"},{"full_name":"Martí I Líndez, Adrià Arnau","last_name":"Martí I Líndez","first_name":"Adrià Arnau"},{"first_name":"Anett","last_name":"Jandke","full_name":"Jandke, Anett"},{"last_name":"Unterstab","first_name":"Gunhild","full_name":"Unterstab, Gunhild"},{"full_name":"Fabre, Lucien","first_name":"Lucien","last_name":"Fabre"},{"full_name":"Sauteur, Loïc","first_name":"Loïc","last_name":"Sauteur"},{"last_name":"Artinger","first_name":"Marc","full_name":"Artinger, Marc"},{"last_name":"Legler","first_name":"Daniel F.","full_name":"Legler, Daniel F."},{"last_name":"Sixt","id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87","first_name":"Michael K","orcid":"0000-0002-6620-9179","full_name":"Sixt, Michael K"},{"full_name":"Schaefer, Thorsten","last_name":"Schaefer","first_name":"Thorsten"},{"last_name":"Wymann","first_name":"Matthias P.","full_name":"Wymann, Matthias P."},{"full_name":"Okkenhaug, Klaus","first_name":"Klaus","last_name":"Okkenhaug"},{"full_name":"Soldati, Thierry","last_name":"Soldati","first_name":"Thierry"},{"full_name":"Mehling, Matthias","orcid":"0000-0001-8599-1226","id":"3C23B994-F248-11E8-B48F-1D18A9856A87","first_name":"Matthias","last_name":"Mehling"},{"full_name":"Hess, Christoph","last_name":"Hess","first_name":"Christoph"}],"scopus_import":"1","oa":1,"status":"public","date_created":"2026-07-19T22:01:48Z","publication_status":"epub_ahead","oa_version":"Published Version","title":"A conserved VPS34-PIKfyve-TRPML1-myosin II axis regulates the speed of amoeboid cell migration","article_processing_charge":"Yes (via OA deal)","OA_type":"gold","dataavailabilitystatement":"The analysis workflow to quantify vesicle localization can be accessed on GitHub (https://github.com/loicsauteur/vesicle-analysis, version 0.1.1).\r\n\r\nThe source data of this paper are collected in the following database record: biostudies:S-SCDT-10_1038-S44319-026-00861-x.","article_type":"original","pmid":1,"abstract":[{"lang":"eng","text":"Amoeboid cell migration is key to efficient T cell immunity. Spatial polarization of organelles within cells, including endo-lysosomes, is a prerequisite of migration. However, how ultrastructural polarization is linked to the signaling requirements governing T cell migration remains unknown. Here we show that signaling molecules generated by endo-lysosome-localized kinases regulate velocity of amoeboid migration. Specifically, imaging of T cells identifies accumulation of endo-lysosomes decorated with the lipid kinases VPS34–PIKfyve at the uropod of polarized cells. Activity of VPS34 and PIKfyve regulates speed, but not directedness, of migrating T cells. Mechanistically, PI(3,5)P2 generated by the sequential action of VPS34 and PIKfyve, mediates Ca2+ efflux from lysosomes via the mucolipin TRP cation channel 1 (TRPML1), thus controlling activity of myosin IIA and hence the generation of propulsive force through retrograde actin flow. The VPS34–PIKfyve kinases also regulate velocity of myeloid cells, as well as of the amoeba Dictyostelium discoideum – establishing the axis as an evolutionarily conserved speed control system of amoeboid cell migration."}],"external_id":{"pmid":["42414599"]},"publication_identifier":{"eissn":["1469-3178"]},"month":"07","acknowledged_ssus":[{"_id":"Bio"},{"_id":"LifeSc"}],"year":"2026","OA_place":"publisher","das_tickbox":"1","_id":"22371","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-07-20T14:28:59Z","main_file_link":[{"url":"https://doi.org/10.1038/s44319-026-00861-x","open_access":"1"}],"date_published":"2026-07-07T00:00:00Z","day":"07","doi":"10.1038/s44319-026-00861-x","researchdata_availability":"yes","DOAJ_listed":"1","quality_controlled":"1","language":[{"iso":"eng"}],"publication":"EMBO Reports","acknowledgement":"We thank the microscopy core facility of the Department of Biomedicine at the University and University Hospital of Basel for their technical support. This research was technically supported by the Scientific Service Units (SSU) of ISTA through resources provided by the Imaging & Optics Facility (IOF) and the Lab Support Facility (LSF). CH was supported by the Swiss National Science Foundation (SNSF) (310030B_201277; 310030_192677; FZEB-0-180487), the ZBF Program Award 2025 (Hans Zäslin Bustany Foundation), and the Novartis Foundation for Medical-Biological Research (NFMBR) (#23A070). PD was supported by the Swiss Academy for Medical Sciences (SAMW) and SNSF (183980, 225441), the NFMBR (#23A070), AlumniMedizin Basel, and the Freiwillige Akademische Gesellschaft Basel. DFL was supported by the SNSF (220205). Open access funding provided by University of Basel.","citation":{"ista":"Dehio PG, Michard C, Yam-Puc JC, Martí I Líndez AA, Jandke A, Unterstab G, Fabre L, Sauteur L, Artinger M, Legler DF, Sixt MK, Schaefer T, Wymann MP, Okkenhaug K, Soldati T, Mehling M, Hess C. 2026. A conserved VPS34-PIKfyve-TRPML1-myosin II axis regulates the speed of amoeboid cell migration. EMBO Reports.","apa":"Dehio, P. G., Michard, C., Yam-Puc, J. C., Martí I Líndez, A. A., Jandke, A., Unterstab, G., … Hess, C. (2026). A conserved VPS34-PIKfyve-TRPML1-myosin II axis regulates the speed of amoeboid cell migration. EMBO Reports. Springer Nature. https://doi.org/10.1038/s44319-026-00861-x","short":"P.G. Dehio, C. Michard, J.C. Yam-Puc, A.A. Martí I Líndez, A. Jandke, G. Unterstab, L. Fabre, L. Sauteur, M. Artinger, D.F. Legler, M.K. Sixt, T. Schaefer, M.P. Wymann, K. Okkenhaug, T. Soldati, M. Mehling, C. Hess, EMBO Reports (2026).","ama":"Dehio PG, Michard C, Yam-Puc JC, et al. A conserved VPS34-PIKfyve-TRPML1-myosin II axis regulates the speed of amoeboid cell migration. EMBO Reports. 2026. doi:10.1038/s44319-026-00861-x","mla":"Dehio, Philippe G., et al. “A Conserved VPS34-PIKfyve-TRPML1-Myosin II Axis Regulates the Speed of Amoeboid Cell Migration.” EMBO Reports, Springer Nature, 2026, doi:10.1038/s44319-026-00861-x.","chicago":"Dehio, Philippe G, Céline Michard, Juan Carlos Yam-Puc, Adrià Arnau Martí I Líndez, Anett Jandke, Gunhild Unterstab, Lucien Fabre, et al. “A Conserved VPS34-PIKfyve-TRPML1-Myosin II Axis Regulates the Speed of Amoeboid Cell Migration.” EMBO Reports. Springer Nature, 2026. https://doi.org/10.1038/s44319-026-00861-x.","ieee":"P. G. Dehio et al., “A conserved VPS34-PIKfyve-TRPML1-myosin II axis regulates the speed of amoeboid cell migration,” EMBO Reports. Springer Nature, 2026."},"type":"journal_article"},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"22366","das_tickbox":"1","date_updated":"2026-07-20T13:53:44Z","year":"2026","month":"07","publication_identifier":{"issn":["0960-7412"],"eissn":["1365-313X"]},"volume":127,"type":"journal_article","citation":{"apa":"Sun, L., Jia, W., Mao, Y., Li, X., Kong, M., She, J., … Tan, S. (2026). Regulation of shoot gravitropism and branching angle by the GRV2-SAC1 axis in Arabidopsis. The Plant Journal. Wiley. https://doi.org/10.1111/tpj.71042","ista":"Sun L, Jia W, Mao Y, Li X, Kong M, She J, Friml J, Tan S. 2026. Regulation of shoot gravitropism and branching angle by the GRV2-SAC1 axis in Arabidopsis. The Plant Journal. 127(1), e71042.","ieee":"L. Sun et al., “Regulation of shoot gravitropism and branching angle by the GRV2-SAC1 axis in Arabidopsis,” The Plant Journal, vol. 127, no. 1. Wiley, 2026.","ama":"Sun L, Jia W, Mao Y, et al. Regulation of shoot gravitropism and branching angle by the GRV2-SAC1 axis in Arabidopsis. The Plant Journal. 2026;127(1). doi:10.1111/tpj.71042","short":"L. Sun, W. Jia, Y. Mao, X. Li, M. Kong, J. She, J. Friml, S. Tan, The Plant Journal 127 (2026).","chicago":"Sun, Lianghanxiao, Wenxin Jia, Yanbo Mao, Xin Li, Mengjuan Kong, Ji She, Jiří Friml, and Shutang Tan. “Regulation of Shoot Gravitropism and Branching Angle by the GRV2-SAC1 Axis in Arabidopsis.” The Plant Journal. Wiley, 2026. https://doi.org/10.1111/tpj.71042.","mla":"Sun, Lianghanxiao, et al. “Regulation of Shoot Gravitropism and Branching Angle by the GRV2-SAC1 Axis in Arabidopsis.” The Plant Journal, vol. 127, no. 1, e71042, Wiley, 2026, doi:10.1111/tpj.71042."},"language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":" 127","acknowledgement":"We acknowledge Prof. Dolf Weijers (Wageningen University), Prof.Karin Schumacher (Heidelberg University), Prof. Yohann Boutt ´e(Universit ´e de Bordeaux), and Prof. Jinbo Shen (Zhejiang A&FUniversity) for providing published plasmids and Arabidopsislines. We thank Dr. Gergely Moln ´ar (ISTA) for help with NGS dataanalysis, and Prof. Jianru Zuo (IGDB, CAS), Prof. Chengbin Xiang(USTC), and Prof. Zhong Zhao (USTC) for critical comments onthe manuscript. We thank the staff members of the Mass Spec-trometry System at the National Facility for Protein Science inShanghai (NFPS), Zhangjiang Lab, China for providing technicalsupport and assistance in data collection and analysis. This workwas supported by grants from the National Natural Science Foun-dation of China (32570366, and 32321001 to ST), the Natural Sci-ence Foundation of Anhui Province (2508085QC070 to MK), theFundamental Research Funds for the Central Universities(WK9100250095 to MK, and WK9100000021 to ST), the ForestryBureau of Anhui Province (AHLYJBGS-2024-01 to ST), the Centerfor Advanced Interdisciplinary Science and Biomedicine of IHM,Division of Life Sciences and Medicine, University of Science andTechnology of China (QYPY20220012 to ST), the USTC ResearchFunds of the Double First-Class Initiative (YD9100002016 to ST),and start-up funding from the University of Science and Technol-ogy of China and the Chinese Academy of Sciences(GG9100007007, KY9100000026, KY9100000051, XKTS-202591014,XKTS-2026910122, and KJ2070000079 to ST).","publication":"The Plant Journal","researchdata_availability":"upon request","doi":"10.1111/tpj.71042","date_published":"2026-07-01T00:00:00Z","article_number":"e71042","day":"01","status":"public","scopus_import":"1","author":[{"first_name":"Lianghanxiao","last_name":"Sun","full_name":"Sun, Lianghanxiao"},{"first_name":"Wenxin","last_name":"Jia","full_name":"Jia, Wenxin"},{"last_name":"Mao","first_name":"Yanbo","full_name":"Mao, Yanbo"},{"first_name":"Xin","last_name":"Li","full_name":"Li, Xin"},{"last_name":"Kong","first_name":"Mengjuan","full_name":"Kong, Mengjuan"},{"last_name":"She","first_name":"Ji","full_name":"She, Ji"},{"full_name":"Friml, Jiří","orcid":"0000-0002-8302-7596","id":"4159519E-F248-11E8-B48F-1D18A9856A87","first_name":"Jiří","last_name":"Friml"},{"full_name":"Tan, Shutang","orcid":"0000-0002-0471-8285","id":"2DE75584-F248-11E8-B48F-1D18A9856A87","first_name":"Shutang","last_name":"Tan"}],"department":[{"_id":"JiFr"}],"publisher":"Wiley","supplementarymaterial":"yes","pmid":1,"abstract":[{"text":"Gravitropism is a fundamental adaptive response in plants that enables directional growth to optimize resource acquisition. In this study, we employed forward genetic screening to identify Arabidopsis mutants with defective hypocotyl gravitropism and isolated the short and agravitropic hypocotyl in dark1 (sad1) mutant, which carries a point mutation (G110E) in the SAC1 gene encoding a phosphoinositide phosphatase. Deficiency of SAC1 disrupted gravity-induced polar localization of PIN3 in endodermal cells, impairing auxin redistribution and leading to hypocotyl gravitropism defects. Subcellular localization analysis revealed that SAC1 is partially localized to the PVC/tonoplast and participates in late endosomal trafficking. The sac1 mutation leads to abnormal vacuolar morphology, which is associated with defects in amyloplast sedimentation during the gravitropic response in Arabidopsis shoots. We further revealed that SAC1 interacts with GRV2, a key regulator of the late endocytic pathway, and that both proteins cooperatively regulate shoot gravitropism. In summary, this study identified SAC1 as a regulator of shoot gravitropism, revealing its important role in modulating vacuolar homeostasis, amyloplast sedimentation, PIN3 trafficking, and auxin distribution. These findings provide insights into the molecular mechanisms linking membrane transport to environmental adaptation in plants.","lang":"eng"}],"external_id":{"pmid":["42438075"]},"keyword":["auxin","SAC1","GRV2","PIN3","vacuole","gravitropism","Arabidopsis"],"article_type":"original","dataavailabilitystatement":"Biological materials (seeds, plasmids) are available upon request from ST (sttan@ustc.edu.cn). The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.","issue":"1","OA_type":"closed access","date_created":"2026-07-19T22:01:47Z","publication_status":"published","oa_version":"None","article_processing_charge":"No","title":"Regulation of shoot gravitropism and branching angle by the GRV2-SAC1 axis in Arabidopsis"},{"year":"2026","OA_place":"publisher","_id":"22368","das_tickbox":"0","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-07-21T07:34:49Z","publication_identifier":{"isbn":["9798400725128"]},"month":"07","quality_controlled":"1","language":[{"iso":"eng"}],"acknowledgement":"This work has been supported by the AID INRIA-DGA project\r\nn°2023000872 “BioSwarm”, the French government National Research Agency (ANR) through the UCA JEDI (ANR-15-IDEX-01),\r\nthe EUR DS4H (ANR-17-EURE-004) and the 3IA Cote d’Azur Investments ANR-23-IACL-0001, and EPSRC grant EP/W005573/1","publication":"Proceedings of the Annual ACM Symposium on Principles of Distributed Computing","ddc":["000"],"type":"conference","citation":{"ieee":"N. D’Archivio, H. Almahmoud, E. Natale, and F. Mallmann-Trenn, “Order statistics in population protocols via simple dynamics,” in Proceedings of the Annual ACM Symposium on Principles of Distributed Computing, Egham, United Kingdom, 2026, pp. 425–436.","chicago":"D’Archivio, Niccolò, Hind Almahmoud, Emanuele Natale, and Frederik Mallmann-Trenn. “Order Statistics in Population Protocols via Simple Dynamics.” In Proceedings of the Annual ACM Symposium on Principles of Distributed Computing, 425–36. Association for Computing Machinery, 2026. https://doi.org/10.1145/3796701.3815922.","mla":"D’Archivio, Niccolò, et al. “Order Statistics in Population Protocols via Simple Dynamics.” Proceedings of the Annual ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2026, pp. 425–36, doi:10.1145/3796701.3815922.","short":"N. D’Archivio, H. Almahmoud, E. Natale, F. Mallmann-Trenn, in:, Proceedings of the Annual ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2026, pp. 425–436.","ama":"D’Archivio N, Almahmoud H, Natale E, Mallmann-Trenn F. Order statistics in population protocols via simple dynamics. In: Proceedings of the Annual ACM Symposium on Principles of Distributed Computing. Association for Computing Machinery; 2026:425-436. doi:10.1145/3796701.3815922","apa":"D’Archivio, N., Almahmoud, H., Natale, E., & Mallmann-Trenn, F. (2026). Order statistics in population protocols via simple dynamics. In Proceedings of the Annual ACM Symposium on Principles of Distributed Computing (pp. 425–436). Egham, United Kingdom: Association for Computing Machinery. https://doi.org/10.1145/3796701.3815922","ista":"D’Archivio N, Almahmoud H, Natale E, Mallmann-Trenn F. 2026. Order statistics in population protocols via simple dynamics. Proceedings of the Annual ACM Symposium on Principles of Distributed Computing. PODC: Symposium on Principles of Distributed Computing, 425–436."},"date_published":"2026-07-01T00:00:00Z","day":"01","doi":"10.1145/3796701.3815922","researchdata_availability":"no","scopus_import":"1","conference":{"name":"PODC: Symposium on Principles of Distributed Computing","end_date":"2026-07-10","location":"Egham, United Kingdom","start_date":"2026-07-06"},"oa":1,"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"status":"public","has_accepted_license":"1","publisher":"Association for Computing Machinery","department":[{"_id":"MoHe"}],"supplementarymaterial":"no","author":[{"first_name":"Niccolò","last_name":"D'Archivio","full_name":"D'Archivio, Niccolò"},{"first_name":"Hind","last_name":"Almahmoud","full_name":"Almahmoud, Hind"},{"first_name":"Emanuele","last_name":"Natale","full_name":"Natale, Emanuele"},{"full_name":"Mallmann-Trenn, Frederik","id":"68748c44-84d5-11f1-b4f6-ca083374e553","first_name":"Frederik","last_name":"Mallmann-Trenn"}],"corr_author":"1","file_date_updated":"2026-07-21T07:31:29Z","file":[{"file_size":824239,"file_id":"22379","date_updated":"2026-07-21T07:31:29Z","checksum":"e8208393a016d8e71d7b26c402045488","access_level":"open_access","date_created":"2026-07-21T07:31:29Z","success":1,"file_name":"2026_ACMPODC_dArchivio.pdf","content_type":"application/pdf","relation":"main_file","creator":"dernst"}],"page":"425-436","abstract":[{"text":"We study simple dynamics in the population protocol model, in\r\nwhich 𝑛 agents start with totally ordered initial opinions 𝑥1, 𝑥2, . . . ,\r\n𝑥𝑛 and, in each round, a randomly chosen agent changes its opinion\r\nas a function of the opinion of other randomly chosen agents. Such\r\ndynamics often converge to consensus on a single fixation value 𝑋ˆ.\r\nThis paper asks how to control the distribution of 𝑋ˆ as a randomised\r\nchoice among the initial opinions by designing suitable simple\r\ndynamics. Writing the sorted initial values as 𝑥(1) ≤ · · · ≤ 𝑥(𝑛)\r\n,\r\nwe design two protocols that realise natural target laws over order\r\nstatistics.\r\nFirst, for a parameter 𝑝 ∈ (0, 1), our geometric protocol biases\r\ntoward larger opinions and satisfies P\r\n\r\n𝑋ˆ = 𝑥(𝑘)\r\n\r\n∝ 𝑝\r\n𝑛−𝑘\r\n, for\r\n𝑘 = 1, . . . , 𝑛. Equivalently, P\r\n\r\n𝑋ˆ = 𝑥(𝑘)\r\n\r\n= (1 − 𝑝)𝑝\r\n𝑛−𝑘\r\n/(1 − 𝑝\r\n𝑛\r\n).\r\nSecond, our binomial protocol assigns a shifted binomial law to the\r\nranks in ascending order: if 𝐾 −1 ∼ Bin(𝑛−1, 1−𝑝), then 𝑋ˆ = 𝑥(𝐾)\r\n,\r\ni.e., P\r\n\r\n𝑋ˆ = 𝑥(𝑘)\r\n\r\n=\r\n𝑛−1\r\n𝑘−1\r\n\u0001\r\n𝑝\r\n𝑛−𝑘\r\n(1 − 𝑝)\r\n𝑘−1\r\n, for 𝑘 = 1, . . . , 𝑛.\r\nApplications of this include computing the Top-𝑘 values for\r\nsmall 𝑘 on general interaction graphs. A central contribution of\r\nthis work is that, in contrast to most population protocols, we can\r\ncharacterise the fixation distribution in closed form. This is enabled\r\nby a novel analysis technique, which also yields applications: we\r\nderive new results for the Median protocol that extend the state of\r\nthe art.","lang":"eng"}],"date_created":"2026-07-19T22:01:47Z","oa_version":"Published Version","publication_status":"published","article_processing_charge":"No","title":"Order statistics in population protocols via simple dynamics","OA_type":"gold"},{"has_accepted_license":"1","status":"public","scopus_import":"1","conference":{"location":"Egham, United Kingdom","start_date":"2026-07-06","name":"PODC: Symposium on Principles of Distributed Computing","end_date":"2026-07-10"},"oa":1,"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"author":[{"full_name":"Cooper, Colin","first_name":"Colin","last_name":"Cooper"},{"full_name":"Mallmann-Trenn, Frederik","id":"68748c44-84d5-11f1-b4f6-ca083374e553","first_name":"Frederik","last_name":"Mallmann-Trenn"},{"last_name":"Radzik","first_name":"Tomasz","full_name":"Radzik, Tomasz"},{"last_name":"Shimizu","first_name":"Nobutaka","full_name":"Shimizu, Nobutaka"},{"full_name":"Shiraga, Takeharu","first_name":"Takeharu","last_name":"Shiraga"}],"corr_author":"1","publisher":"Association for Computing Machinery","department":[{"_id":"MoHe"}],"supplementarymaterial":"no","file":[{"date_updated":"2026-07-21T07:51:58Z","file_size":709077,"file_id":"22380","creator":"dernst","file_name":"2026_ACMPODC_Cooper.pdf","relation":"main_file","content_type":"application/pdf","checksum":"9ada61feba1e93fd72867a5ba4ee8bb8","date_created":"2026-07-21T07:51:58Z","success":1,"access_level":"open_access"}],"page":"77-87","abstract":[{"text":"We study the Undecided-State Dynamics (USD), a fundamental consensus process in which each vertex holds one of k decided opinions or the undecided state. We consider both the gossip model and the population protocol model. Prior work established tight bounds on the consensus time of this process only for the regime \r\nk\r\n=\r\nO\r\n(\r\nn\r\n/\r\n(\r\nlog\r\n\r\nn\r\n)\r\n2\r\n)\r\n (for the population protocol model) and k = O((n/log n)1/3) (for the gossip model), often under restrictive assumptions on the initial configuration.\r\nIn this paper, we obtain the first consensus-time guarantees for USD that hold for arbitrary 2 ≤ k ≤ n and for arbitrary initial configurations in both the gossip model and the population protocol model. In the gossip model, USD reaches consensus within \r\nO\r\n~\r\n(\r\nmin\r\n{\r\nk\r\n,\r\nn\r\n}\r\n)\r\n synchronous rounds with probability 1 - p⊥ - n-c, where p⊥ is the gossip-specific probability of collapsing to the all-undecided state in the first round. In the population protocol model, USD reaches consensus within \r\nO\r\n~\r\n(\r\nmin\r\n{\r\nk\r\nn\r\n,\r\nn\r\n3\r\n/\r\n2\r\n}\r\n)\r\n asynchronous interactions with high probability. We also present lower bounds that match the upper bounds up to polylogarithmic factors for a specific initial configuration and show that our upper bounds are essentially optimal.","lang":"eng"}],"external_id":{"arxiv":["2603.02636"]},"keyword":["consensus dynamics","undecided state dynamics","gossip model","population protocol model"],"file_date_updated":"2026-07-21T07:51:58Z","OA_type":"gold","publication_status":"published","date_created":"2026-07-19T22:01:47Z","oa_version":"Published Version","arxiv":1,"title":"Undecided state dynamics with many opinions","article_processing_charge":"No","_id":"22367","das_tickbox":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-07-21T07:54:01Z","year":"2026","OA_place":"publisher","month":"07","publication_identifier":{"isbn":["9798400725128"]},"ddc":["000"],"citation":{"ieee":"C. Cooper, F. Mallmann-Trenn, T. Radzik, N. Shimizu, and T. Shiraga, “Undecided state dynamics with many opinions,” in Proceedings of the Annual ACM Symposium on Principles of Distributed Computing, Egham, United Kingdom, 2026, pp. 77–87.","chicago":"Cooper, Colin, Frederik Mallmann-Trenn, Tomasz Radzik, Nobutaka Shimizu, and Takeharu Shiraga. “Undecided State Dynamics with Many Opinions.” In Proceedings of the Annual ACM Symposium on Principles of Distributed Computing, 77–87. Association for Computing Machinery, 2026. https://doi.org/10.1145/3796701.3815920.","mla":"Cooper, Colin, et al. “Undecided State Dynamics with Many Opinions.” Proceedings of the Annual ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2026, pp. 77–87, doi:10.1145/3796701.3815920.","short":"C. Cooper, F. Mallmann-Trenn, T. Radzik, N. Shimizu, T. Shiraga, in:, Proceedings of the Annual ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2026, pp. 77–87.","ama":"Cooper C, Mallmann-Trenn F, Radzik T, Shimizu N, Shiraga T. Undecided state dynamics with many opinions. In: Proceedings of the Annual ACM Symposium on Principles of Distributed Computing. Association for Computing Machinery; 2026:77-87. doi:10.1145/3796701.3815920","apa":"Cooper, C., Mallmann-Trenn, F., Radzik, T., Shimizu, N., & Shiraga, T. (2026). Undecided state dynamics with many opinions. In Proceedings of the Annual ACM Symposium on Principles of Distributed Computing (pp. 77–87). Egham, United Kingdom: Association for Computing Machinery. https://doi.org/10.1145/3796701.3815920","ista":"Cooper C, Mallmann-Trenn F, Radzik T, Shimizu N, Shiraga T. 2026. Undecided state dynamics with many opinions. Proceedings of the Annual ACM Symposium on Principles of Distributed Computing. PODC: Symposium on Principles of Distributed Computing, 77–87."},"type":"conference","quality_controlled":"1","language":[{"iso":"eng"}],"acknowledgement":"Nobutaka Shimizu is supported by JSPS KAKENHI Grant Number\r\n23K16837. Takeharu Shiraga is supported by JSPS KAKENHI Grant\r\nNumber 23K16840, and JST CRONOS Grant Number JPMJCS24K2.\r\nColin Cooper is supported by a Mercator Fellowship from DFG\r\nProject 491453517 at the University of Hamburg. We thank the\r\nanonymous reviewers for their helpful comments and suggestions.","publication":"Proceedings of the Annual ACM Symposium on Principles of Distributed Computing","researchdata_availability":"no","doi":"10.1145/3796701.3815920","date_published":"2026-07-01T00:00:00Z","day":"01"},{"title":"Unified synthesis of unconventional α-polyhalogenated amines through hydroaminoalkylation","article_processing_charge":"Yes (via OA deal)","oa_version":"Published Version","publication_status":"epub_ahead","date_created":"2026-07-19T22:01:48Z","OA_type":"hybrid","dataavailabilitystatement":"The data that supports the findings of this study are available in the supplementary material of this article.","article_type":"original","abstract":[{"lang":"eng","text":"We report a unified method for the synthesis of α-polyhalomethyl amines from alkenes and alkynes, enabled by readily available hemiaminal reagents. This operationally simple transformation allows for the introduction of not only well-established CF3 and CF2H groups, but also the synthetically (and medicinally) underexplored CF2Cl and CFClH motifs—thereby broadening access to previously inaccessible chemical space of halogenated amine scaffolds. The method displays broad substrate scope and functional-group tolerance while operating under mild conditions. Late-stage functionalization of drug-like derivatives of Oxaprozin, Erlotinib, and Ibuprofen (among others) is reported."}],"external_id":{"pmid":["42429166"]},"pmid":1,"supplementarymaterial":"yes","publisher":"Wiley","department":[{"_id":"GaNo"},{"_id":"GradSch"}],"author":[{"full_name":"Hofmeister, Angela K.","first_name":"Angela K.","last_name":"Hofmeister"},{"full_name":"Iannelli, Giulia","last_name":"Iannelli","first_name":"Giulia"},{"last_name":"Angyal","first_name":"Péter","full_name":"Angyal, Péter"},{"full_name":"Malandain, Augustin","last_name":"Malandain","first_name":"Augustin"},{"full_name":"Kaiser, Daniel","first_name":"Daniel","last_name":"Kaiser"},{"full_name":"Maryasin, Boris","first_name":"Boris","last_name":"Maryasin"},{"full_name":"Kählig, Hanspeter","last_name":"Kählig","first_name":"Hanspeter"},{"full_name":"Barel, Matteo","first_name":"Matteo","id":"8959927b-2236-11ed-bd6e-ea83d94ade0e","last_name":"Barel"},{"orcid":"0000-0002-7673-7178","full_name":"Novarino, Gaia","last_name":"Novarino","id":"3E57A680-F248-11E8-B48F-1D18A9856A87","first_name":"Gaia"},{"full_name":"Maulide, Nuno","first_name":"Nuno","last_name":"Maulide"}],"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"scopus_import":"1","status":"public","has_accepted_license":"1","day":"10","article_number":"e1233707","date_published":"2026-07-10T00:00:00Z","researchdata_availability":"no","doi":"10.1002/anie.1233707","acknowledgement":"Funded by the European Union (ERC, C-HANCE, 101142915 to N.M.). Views and opinions expressed are, however, those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council. This research was funded in full or in part by the Austrian Science Fund (FWF, 10.55776/P37182 to N.M.). The technical staff of the NMR Centre of the Faculty of Chemistry (University of Vienna) are acknowledged for crucial NMR measurements and expert advice with spectral analysis. The authors thank the Core Facility Crystal Structure Analysis (U. Vienna) for determination of the crystal structures. The authors are also grateful to the University of Vienna for its continued support of our research programs.\r\n\r\nOpen Access funding provided by Universität Wien.","publication":"Angewandte Chemie International Edition","quality_controlled":"1","language":[{"iso":"eng"}],"type":"journal_article","citation":{"ista":"Hofmeister AK, Iannelli G, Angyal P, Malandain A, Kaiser D, Maryasin B, Kählig H, Barel M, Novarino G, Maulide N. 2026. Unified synthesis of unconventional α-polyhalogenated amines through hydroaminoalkylation. Angewandte Chemie International Edition., e1233707.","apa":"Hofmeister, A. K., Iannelli, G., Angyal, P., Malandain, A., Kaiser, D., Maryasin, B., … Maulide, N. (2026). Unified synthesis of unconventional α-polyhalogenated amines through hydroaminoalkylation. Angewandte Chemie International Edition. Wiley. https://doi.org/10.1002/anie.1233707","short":"A.K. Hofmeister, G. Iannelli, P. Angyal, A. Malandain, D. Kaiser, B. Maryasin, H. Kählig, M. Barel, G. Novarino, N. Maulide, Angewandte Chemie International Edition (2026).","ama":"Hofmeister AK, Iannelli G, Angyal P, et al. Unified synthesis of unconventional α-polyhalogenated amines through hydroaminoalkylation. Angewandte Chemie International Edition. 2026. doi:10.1002/anie.1233707","mla":"Hofmeister, Angela K., et al. “Unified Synthesis of Unconventional α-Polyhalogenated Amines through Hydroaminoalkylation.” Angewandte Chemie International Edition, e1233707, Wiley, 2026, doi:10.1002/anie.1233707.","chicago":"Hofmeister, Angela K., Giulia Iannelli, Péter Angyal, Augustin Malandain, Daniel Kaiser, Boris Maryasin, Hanspeter Kählig, Matteo Barel, Gaia Novarino, and Nuno Maulide. “Unified Synthesis of Unconventional α-Polyhalogenated Amines through Hydroaminoalkylation.” Angewandte Chemie International Edition. Wiley, 2026. https://doi.org/10.1002/anie.1233707.","ieee":"A. K. Hofmeister et al., “Unified synthesis of unconventional α-polyhalogenated amines through hydroaminoalkylation,” Angewandte Chemie International Edition. Wiley, 2026."},"ddc":["570","540"],"publication_identifier":{"issn":["1433-7851"],"eissn":["1521-3773"]},"month":"07","OA_place":"publisher","year":"2026","date_updated":"2026-07-21T07:19:26Z","das_tickbox":"1","_id":"22370","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"},{"month":"07","acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"publication_identifier":{"issn":["2331-7019"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"22323","date_updated":"2026-07-21T12:01:49Z","year":"2026","PlanS_conform":"1","OA_place":"publisher","doi":"10.1103/75bl-mm3b","researchdata_availability":"yes","article_number":"014031","date_published":"2026-07-10T00:00:00Z","day":"10","ddc":["530"],"volume":26,"type":"journal_article","citation":{"short":"K.W. Léonard, A. Bubis, M. Mikalsen, W.F. Schiela, B.H. Elfeky, W.M. Strickland, D.T. Phan, J. Shabani, A.P. Higginbotham, Physical Review Applied 26 (2026).","ama":"Léonard KW, Bubis A, Mikalsen M, et al. Microwave radiometry of a quantum-critical hybrid Josephson array. Physical Review Applied. 2026;26. doi:10.1103/75bl-mm3b","chicago":"Léonard, Kristen Williams, Anton Bubis, Melissa Mikalsen, William F. Schiela, Bassel H. Elfeky, William M. Strickland, Duc T Phan, Javad Shabani, and Andrew P Higginbotham. “Microwave Radiometry of a Quantum-Critical Hybrid Josephson Array.” Physical Review Applied. American Physical Society, 2026. https://doi.org/10.1103/75bl-mm3b.","mla":"Léonard, Kristen Williams, et al. “Microwave Radiometry of a Quantum-Critical Hybrid Josephson Array.” Physical Review Applied, vol. 26, 014031, American Physical Society, 2026, doi:10.1103/75bl-mm3b.","ieee":"K. W. Léonard et al., “Microwave radiometry of a quantum-critical hybrid Josephson array,” Physical Review Applied, vol. 26. American Physical Society, 2026.","ista":"Léonard KW, Bubis A, Mikalsen M, Schiela WF, Elfeky BH, Strickland WM, Phan DT, Shabani J, Higginbotham AP. 2026. Microwave radiometry of a quantum-critical hybrid Josephson array. Physical Review Applied. 26, 014031.","apa":"Léonard, K. W., Bubis, A., Mikalsen, M., Schiela, W. F., Elfeky, B. H., Strickland, W. M., … Higginbotham, A. P. (2026). Microwave radiometry of a quantum-critical hybrid Josephson array. Physical Review Applied. American Physical Society. https://doi.org/10.1103/75bl-mm3b"},"language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":" 26","acknowledgement":"We gratefully acknowledge feedback on the preprint\r\nfrom Charles Marcus, Vadim Khrapai, Joel Moore,\r\nAndrew Green, Shivaji Sondhi, Rufus Boyack, and\r\nLuca Delacr´etaz. This work was primarily supported by\r\nthe NOMIS foundation. This work was partially supported\r\nby the University of Chicago Materials Research Science\r\nand Engineering Center, which is funded by the National\r\nScience Foundation under Award No. DMR-2011854, and\r\nby the SFB Q-M&S funded by the Austrian Science Fund\r\n(FWF). We acknowledge technical support from the\r\nNanofabrication Facility and the MIBA machine shop at\r\nIST Austria.","publication":"Physical Review Applied","project":[{"name":"Center for Correlated Quantum Materials and Solid State Quantum Systems: Conventional and unconventional topological superconductors","grant_number":"F8606","_id":"34a66131-11ca-11ed-8bc3-a31681c6b03e"}],"corr_author":"1","author":[{"last_name":"Galvin","id":"41737c86-5355-11ee-ae5a-d2146bfd0877","first_name":"Kristen W","full_name":"Galvin, Kristen W"},{"first_name":"Anton","id":"1f6212b5-f795-11ec-9c0c-de4780302890","last_name":"Bubis","full_name":"Bubis, Anton"},{"first_name":"Melissa","last_name":"Mikalsen","full_name":"Mikalsen, Melissa"},{"last_name":"Schiela","first_name":"William F.","full_name":"Schiela, William F."},{"first_name":"Bassel H.","last_name":"Elfeky","full_name":"Elfeky, Bassel H."},{"first_name":"William M.","last_name":"Strickland","full_name":"Strickland, William M."},{"first_name":"Duc T","id":"29C8C0B4-F248-11E8-B48F-1D18A9856A87","last_name":"Phan","full_name":"Phan, Duc T"},{"full_name":"Shabani, Javad","last_name":"Shabani","first_name":"Javad"},{"full_name":"Higginbotham, Andrew P","orcid":"0000-0003-2607-2363","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","first_name":"Andrew P","last_name":"Higginbotham"}],"department":[{"_id":"GradSch"},{"_id":"AnHi"},{"_id":"GeKa"}],"publisher":"American Physical Society","supplementarymaterial":"no","status":"public","has_accepted_license":"1","oa":1,"scopus_import":"1","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"OA_type":"hybrid","publication_status":"published","date_created":"2026-07-14T05:35:24Z","oa_version":"Published Version","article_processing_charge":"Yes (via OA deal)","title":"Microwave radiometry of a quantum-critical hybrid Josephson array","arxiv":1,"file":[{"date_updated":"2026-07-16T09:39:37Z","file_id":"22350","file_size":2750867,"content_type":"application/pdf","file_name":"2026_PhysicalReviewApplied_Leonard.pdf","relation":"main_file","creator":"dernst","access_level":"open_access","date_created":"2026-07-16T09:39:37Z","success":1,"checksum":"d872ca35d9d2c7821642fda520be2c15"}],"external_id":{"arxiv":["2409.09835"]},"abstract":[{"lang":"eng","text":"Arrays of Josephson junctions can be tuned through anomalous metallic, quantum-critical, and insulating regimes. We introduce an alternative experimental probe, capturing microwave radiation across all three regimes, using a two-dimensional array of superconductor-semiconductor hybrid Josephson junctions as a model system. Our approach allows calibration of the sample’s circuit parameters and provides isolation from measurement back-action effects. We measure the radiation temperature of the anomalous metal and find that it is hotter than both the quantum-critical and insulating regimes. We further show that the anomalous metallic regime is more susceptible to additional heating than other regimes, explaining its emergence in otherwise thermalized systems. Turning to the quantum-critical regime, we discover nonlinear scaling of radiative noise with applied bias, consistent with theoretical predictions of universal nonequilibrium behavior at quantum-critical points."}],"article_type":"original","file_date_updated":"2026-07-16T09:39:37Z","dataavailabilitystatement":"The data that support the findings of this article are openly available under 10.5281/zenodo\r\n.19615009. "},{"ddc":["520"],"volume":710,"citation":{"ista":"Marcel G, Turner SGD, Ricketts BJ, López-Barquero V, Buisson DJK, Vincentelli F, Middleton M, Reynolds CS, Avara M. 2026. Disk warping and black hole X-ray binaries: I. Tentative unification of low-frequency quasi-periodic oscillations. Astronomy & Astrophysics. 710, A387.","apa":"Marcel, G., Turner, S. G. D., Ricketts, B. J., López-Barquero, V., Buisson, D. J. K., Vincentelli, F., … Avara, M. (2026). Disk warping and black hole X-ray binaries: I. Tentative unification of low-frequency quasi-periodic oscillations. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/202558103","ama":"Marcel G, Turner SGD, Ricketts BJ, et al. Disk warping and black hole X-ray binaries: I. Tentative unification of low-frequency quasi-periodic oscillations. Astronomy & Astrophysics. 2026;710. doi:10.1051/0004-6361/202558103","short":"G. Marcel, S.G.D. Turner, B.J. Ricketts, V. López-Barquero, D.J.K. Buisson, F. Vincentelli, M. Middleton, C.S. Reynolds, M. Avara, Astronomy & Astrophysics 710 (2026).","chicago":"Marcel, G., S. G. D. Turner, B. J. Ricketts, V. López-Barquero, D. J. K. Buisson, F. Vincentelli, M. Middleton, C.S. Reynolds, and Mark Avara. “Disk Warping and Black Hole X-Ray Binaries: I. Tentative Unification of Low-Frequency Quasi-Periodic Oscillations.” Astronomy & Astrophysics. EDP Sciences, 2026. https://doi.org/10.1051/0004-6361/202558103.","mla":"Marcel, G., et al. “Disk Warping and Black Hole X-Ray Binaries: I. Tentative Unification of Low-Frequency Quasi-Periodic Oscillations.” Astronomy & Astrophysics, vol. 710, A387, EDP Sciences, 2026, doi:10.1051/0004-6361/202558103.","ieee":"G. Marcel et al., “Disk warping and black hole X-ray binaries: I. Tentative unification of low-frequency quasi-periodic oscillations,” Astronomy & Astrophysics, vol. 710. EDP Sciences, 2026."},"type":"journal_article","language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":" 710","publication":"Astronomy & Astrophysics","acknowledgement":"GM acknowledges support from the Polish National Science Center grant 2023/48/Q/ST9/00138 and the Academy of Finland grant 355672. The authors thank the Editor for their insightful comments and effective stewardship of the review process. SGDT acknowledges support under\r\nSTFC Grant ST/X001113/1. This work made use of the python packages\r\nMatplotlib (Hunter 2007), NumPy (Harris et al. 2020), and Stingray v2.2\r\n(Huppenkothen et al. 2019; Bachetti et al. 2024b,a).","researchdata_availability":"no","doi":"10.1051/0004-6361/202558103","article_number":"A387","date_published":"2026-06-01T00:00:00Z","day":"01","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"22381","das_tickbox":"0","date_updated":"2026-07-21T12:22:52Z","year":"2026","PlanS_conform":"1","OA_place":"publisher","month":"06","publication_identifier":{"issn":["0004-6361"],"eissn":["1432-0746"]},"file":[{"checksum":"95c1695f3c7183b2ad9d58167500b18d","date_created":"2026-07-21T12:20:49Z","success":1,"access_level":"open_access","creator":"dernst","relation":"main_file","content_type":"application/pdf","file_name":"2026_AstronomyAstrophysics_Marcel.pdf","file_size":3286905,"file_id":"22382","date_updated":"2026-07-21T12:20:49Z"}],"external_id":{"arxiv":["2511.10474"]},"abstract":[{"lang":"eng","text":"Context. X-ray binaries exhibit complex variability patterns studied in the power spectrum. These include the broadband noise (BBN)\r\ncomponents and various types of narrow components called quasi-periodic oscillations (QPOs). There is currently no consensus about\r\nwhat determines the presence or absence of the BBN or what generates the QPOs. Many believe that QPO generation is due to framedragging effects caused by Lense–Thirring torques.\r\nAims. We investigated the potential impact of frame-dragging effects on the accretion disk itself. In particular, we focused on its\r\nimpact on the observed variability and on the presence (and types) of associated QPOs.\r\nMethods. We made analytical estimates to assess the potential presence of a geometric warp in the inner accretion disk during state\r\ntransitions.\r\nResults. We show that the presence of a warp can modify the spectral-timing properties in a way that matches the observed transition\r\nbetween QPO types during outbursts. We also discuss the peculiar case of Cyg X-1, as well as how the hard-to-soft transition could\r\nbe driven by the warp itself.\r\nConclusions. The (expected) emergence of a warp provides a consistent explanation for the evolution of both the BBN and the QPO\r\nproperties during state transitions. This offers a first path toward unifying the variability of black hole X-ray binaries."}],"article_type":"original","file_date_updated":"2026-07-21T12:20:49Z","OA_type":"diamond","publication_status":"published","date_created":"2026-07-21T10:29:36Z","oa_version":"Published Version","title":"Disk warping and black hole X-ray binaries: I. Tentative unification of low-frequency quasi-periodic oscillations","article_processing_charge":"No","arxiv":1,"status":"public","has_accepted_license":"1","oa":1,"scopus_import":"1","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"author":[{"full_name":"Marcel, G.","last_name":"Marcel","first_name":"G."},{"full_name":"Turner, S. G. D.","last_name":"Turner","first_name":"S. G. D."},{"last_name":"Ricketts","first_name":"B. J.","full_name":"Ricketts, B. J."},{"last_name":"López-Barquero","first_name":"V.","full_name":"López-Barquero, V."},{"last_name":"Buisson","first_name":"D. J. K.","full_name":"Buisson, D. J. K."},{"first_name":"F.","last_name":"Vincentelli","full_name":"Vincentelli, F."},{"last_name":"Middleton","first_name":"M.","full_name":"Middleton, M."},{"full_name":"Reynolds, C.S.","last_name":"Reynolds","first_name":"C.S."},{"last_name":"Avara","first_name":"Mark","id":"24edc561-7790-11f0-acf5-82cd0823fe7e","full_name":"Avara, Mark"}],"publisher":"EDP Sciences","department":[{"_id":"ZoHa"}],"supplementarymaterial":"yes"},{"ec_funded":1,"month":"07","OA_place":"publisher","year":"2026","date_updated":"2026-07-22T06:15:56Z","das_tickbox":"0","_id":"22321","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","day":"01","date_published":"2026-07-01T00:00:00Z","doi":"10.1145/3805689.3806807","researchdata_availability":"no","publication":"Proceedings of the 2026 ACM Conference on Fairness, Accountability, and Transparency","acknowledgement":"This work has been supported by the European Research Council under Grant No.: ERC-2020-AdG 101020093.","quality_controlled":"1","language":[{"iso":"eng"}],"citation":{"ista":"Cano Cordoba F, Henzinger TA, Kueffner K. 2026. Energy shields for fairness. Proceedings of the 2026 ACM Conference on Fairness, Accountability, and Transparency. FAccT: Conference on Fairness, Accountability and Transparency, 4243–4275.","apa":"Cano Cordoba, F., Henzinger, T. A., & Kueffner, K. (2026). Energy shields for fairness. In Proceedings of the 2026 ACM Conference on Fairness, Accountability, and Transparency (pp. 4243–4275). Montreal, Canada: Association for Computing Machinery. https://doi.org/10.1145/3805689.3806807","mla":"Cano Cordoba, Filip, et al. “Energy Shields for Fairness.” Proceedings of the 2026 ACM Conference on Fairness, Accountability, and Transparency, Association for Computing Machinery, 2026, pp. 4243–75, doi:10.1145/3805689.3806807.","chicago":"Cano Cordoba, Filip, Thomas A Henzinger, and Konstantin Kueffner. “Energy Shields for Fairness.” In Proceedings of the 2026 ACM Conference on Fairness, Accountability, and Transparency, 4243–75. Association for Computing Machinery, 2026. https://doi.org/10.1145/3805689.3806807.","short":"F. Cano Cordoba, T.A. Henzinger, K. Kueffner, in:, Proceedings of the 2026 ACM Conference on Fairness, Accountability, and Transparency, Association for Computing Machinery, 2026, pp. 4243–4275.","ama":"Cano Cordoba F, Henzinger TA, Kueffner K. Energy shields for fairness. In: Proceedings of the 2026 ACM Conference on Fairness, Accountability, and Transparency. Association for Computing Machinery; 2026:4243-4275. doi:10.1145/3805689.3806807","ieee":"F. Cano Cordoba, T. A. Henzinger, and K. Kueffner, “Energy shields for fairness,” in Proceedings of the 2026 ACM Conference on Fairness, Accountability, and Transparency, Montreal, Canada, 2026, pp. 4243–4275."},"type":"conference","ddc":["000"],"supplementarymaterial":"yes","department":[{"_id":"ToHe"}],"publisher":"Association for Computing Machinery","corr_author":"1","author":[{"last_name":"Cano Cordoba","id":"708cad98-e86a-11ef-8098-bdae2d7c6af1","first_name":"Filip","full_name":"Cano Cordoba, Filip","orcid":"0000-0002-0783-904X"},{"id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A","last_name":"Henzinger","orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A"},{"first_name":"Konstantin","id":"8121a2d0-dc85-11ea-9058-af578f3b4515","last_name":"Kueffner","orcid":"0000-0001-8974-2542","full_name":"Kueffner, Konstantin"}],"project":[{"_id":"62781420-2b32-11ec-9570-8d9b63373d4d","call_identifier":"H2020","grant_number":"101020093","name":"Vigilant Algorithmic Monitoring of Software"}],"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"scopus_import":"1","conference":{"end_date":"2026-06-28","name":"FAccT: Conference on Fairness, Accountability and Transparency","location":"Montreal, Canada","start_date":"2026-06-25"},"oa":1,"has_accepted_license":"1","status":"public","arxiv":1,"title":"Energy shields for fairness","article_processing_charge":"Yes","date_created":"2026-07-14T05:32:45Z","oa_version":"Published Version","publication_status":"published","OA_type":"gold","file_date_updated":"2026-07-16T09:23:15Z","page":"4243 - 4275","abstract":[{"lang":"eng","text":"Runtime fairness is not a one-time constraint but a dynamic property evaluated over a sequence of decisions. To ensure fairness at runtime, it is necessary to account for past decisions, information neglected by conventional, static classifiers. Traditional fairness shields enforce runtime fairness abruptly, by intervening deterministically whenever a sequence of decisions violates the target for a running fairness measure. This motivates our main conceptual contribution: energy shields. An energy shield is a novel, lightweight, adaptive controller that monitors a sequence of decisions and intervenes probabilistically to ensure runtime fairness smoothly, by utilizing physics-inspired energy functions to nudge the sequence toward fairness: the more unfair the decisions, the stronger the nudging force becomes. This makes energy shields the first fairness shields to provide both short-term safety and long-term liveness guarantees. Safety ensures that the running fairness measure stays within a running target interval with high probability, and liveness ensures that the limit of the fairness measure lies within the limit target interval. Intuitively, the short-term specifies the tolerated fairness values and the long-term specifies the desired fairness values. We also provide a synthesis procedure for constructing the least intrusive energy shield for a given target specification, and demonstrate its efficiency experimentally. We evaluate our energy shields against existing fairness shields through the lens of short- and long-term fairness."}],"external_id":{"arxiv":["2605.24926"]},"file":[{"date_updated":"2026-07-16T09:23:15Z","file_id":"22348","file_size":3129128,"content_type":"application/pdf","relation":"main_file","file_name":"2026_ACMFACCT_Cano.pdf","creator":"dernst","access_level":"open_access","success":1,"date_created":"2026-07-16T09:23:15Z","checksum":"21e648ea3b529f0df7545ad4b31b0ef4"}]},{"article_type":"original","file_date_updated":"2026-06-22T07:21:04Z","dataavailabilitystatement":"Daily rainfall data across Nepal were obtained from the Department of Hydrology and Meteorology, Kathmandu, Nepal (https://dhm.gov.np/). Precipitation data from Pyramid observatory are available from [https://glacioclim.osug.fr/Donnees-du-Nepal-region-du-Khumbu](https:/glacioclim.osug.fr/Donnees-du-Nepal-region-du-Khumbu) . Precipitation data from rain gauges in Rolwaling valley are available from https://doi.org/10.5281/zenodo.18081206. NOAA’s Climate Prediction Center provided daily OLR data ( [https://psl.noaa.gov/data/gridded/data.cpc\\_blended\\_olr-2.5 deg.html](https:/psl.noaa.gov/data/gridded/data.cpc_blended_olr-2.5 deg.html) ). We used infrared brightness temperature data from MSG2 (Meteosat 9)-IODC. The Center for Environmental Remote Sensing (CEReS), Chiba University, archived and provided the data (https://ceres.chiba-u.jp/en/ top-eng/). The GPM DPR products are available from the Japan Aerospace Exploration Agency (JAXA) G-Portal website ( [https://gportal.jaxa.jp/gpr/](https:/gportal.jaxa.jp/gpr) ). The ERA5 data are available from the Copernicus climate-change service (C3S) climate data store (https://doi.org/10.24381/cds.bd0915c6). GMTED2010 data are available from the US Geological Survey (https://topotools.cr.usgs.gov/gmted\\_viewer/viewer.htm).","file":[{"access_level":"open_access","success":1,"date_created":"2026-06-22T07:21:04Z","checksum":"19a217b038756abf44bc49939a01e33c","content_type":"application/pdf","relation":"main_file","file_name":"2026_SOLA_Fujinami.pdf","creator":"dernst","file_id":"22109","file_size":13308662,"date_updated":"2026-06-22T07:21:04Z"}],"abstract":[{"text":"On 26–28 September 2024, torrential rainfall struck Nepal during the late monsoon season, causing flooding, landslides and extensive damage. This study examined the multiscale processes contributing to this extreme precipitation event, focusing on intraseasonal oscillations, synoptic-scale circulations, and mesoscale cloud/precipitation systems. A quasi-biweekly intraseasonal oscillation dominated over South Asia during the event, featuring a monsoon low-pressure system over the Indian Peninsula and an anticyclone to its east, both propagating westward. The pressure gradient between them sustained strong southerly moisture transport toward the Himalayas, establishing a persistently humid environment and orographic lift along the southern slopes. In contrast to reports of previous extreme precipitation events in Nepal, the atmospheric circulation responsible for the 2024 event was primarily of tropical origin, with minimal influence from the midlatitudes. Characteristic mesoscale cloud/precipitation systems also developed around the Himalayas. The highest daily precipitation during the event was recorded on 27 September; stratiform systems with relatively modest storm top heights developed over the southern slopes, generating surface precipitation rates of > 100 mm h− 1 through warm-rain processes. Rain gauges across the glacierized basin (3500–5000 m asl) recorded exceptionally high daily and hourly precipitation rates, highlighting the extension of intense rainfall to unusually high elevations.","lang":"eng"}],"date_created":"2026-06-14T22:01:42Z","publication_status":"published","oa_version":"Published Version","article_processing_charge":"Yes","title":"Multiscale aspects of an extreme precipitation event over Nepal in September 2024","OA_type":"gold","oa":1,"scopus_import":"1","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"has_accepted_license":"1","status":"public","department":[{"_id":"FrPe"}],"publisher":"Springer Nature","supplementarymaterial":"yes","author":[{"full_name":"Fujinami, Hatsuki","first_name":"Hatsuki","last_name":"Fujinami"},{"full_name":"Takahashi, Nobuhiro","last_name":"Takahashi","first_name":"Nobuhiro"},{"full_name":"Kanamori, Hironari","last_name":"Kanamori","first_name":"Hironari"},{"full_name":"Sato, Yota","first_name":"Yota","id":"daa9e17a-f2c2-11ef-b968-915e836dea45","last_name":"Sato"},{"full_name":"Sunako, Sojiro","last_name":"Sunako","first_name":"Sojiro"},{"last_name":"Kato","first_name":"Masaya","full_name":"Kato, Masaya"},{"full_name":"Higuchi, Atsushi","last_name":"Higuchi","first_name":"Atsushi"},{"full_name":"Kadel, Indira","first_name":"Indira","last_name":"Kadel"},{"full_name":"Shrestha, Dibas","first_name":"Dibas","last_name":"Shrestha"},{"full_name":"Kayastha, Rijan B.","last_name":"Kayastha","first_name":"Rijan B."},{"last_name":"Fujita","first_name":"Koji","full_name":"Fujita, Koji"}],"language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":" 22","acknowledgement":"This work was supported by the Japan Society for the Promotion of Science (JSPS) (KAKENHI Grants: 22H00176, 22H00033, 22H00037, and 23KK0064). It was partly supported by the 4th Research Announcement on the Earth Observations of the Japan Aerospace Exploration Agency (JAXA). It was partly carried out under the joint research program of Institute for Space–Earth Environmental Research, Nagoya University and as a joint research program with the Center for Environmental Remote Sensing (CEReS), Chiba University (CJ25-43, 2025). We thank James Buxton MSc and Tina Tin PhD from Edanz (https://jp.edanz.com/ac), for editing a draft of this manuscript. The Japan Society for the Promotion of Science (JSPS) supports this work (KAKENHI Grants: 22H00176, 22H00033, 22H00037, and 23KK0064).","publication":"Scientific Online Letters on the Atmosphere","ddc":["550"],"volume":22,"citation":{"ista":"Fujinami H, Takahashi N, Kanamori H, Sato Y, Sunako S, Kato M, Higuchi A, Kadel I, Shrestha D, Kayastha RB, Fujita K. 2026. Multiscale aspects of an extreme precipitation event over Nepal in September 2024. Scientific Online Letters on the Atmosphere. 22, 27.","apa":"Fujinami, H., Takahashi, N., Kanamori, H., Sato, Y., Sunako, S., Kato, M., … Fujita, K. (2026). Multiscale aspects of an extreme precipitation event over Nepal in September 2024. Scientific Online Letters on the Atmosphere. Springer Nature. https://doi.org/10.1007/s44393-026-00024-0","ama":"Fujinami H, Takahashi N, Kanamori H, et al. Multiscale aspects of an extreme precipitation event over Nepal in September 2024. Scientific Online Letters on the Atmosphere. 2026;22. doi:10.1007/s44393-026-00024-0","short":"H. Fujinami, N. Takahashi, H. Kanamori, Y. Sato, S. Sunako, M. Kato, A. Higuchi, I. Kadel, D. Shrestha, R.B. Kayastha, K. Fujita, Scientific Online Letters on the Atmosphere 22 (2026).","chicago":"Fujinami, Hatsuki, Nobuhiro Takahashi, Hironari Kanamori, Yota Sato, Sojiro Sunako, Masaya Kato, Atsushi Higuchi, et al. “Multiscale Aspects of an Extreme Precipitation Event over Nepal in September 2024.” Scientific Online Letters on the Atmosphere. Springer Nature, 2026. https://doi.org/10.1007/s44393-026-00024-0.","mla":"Fujinami, Hatsuki, et al. “Multiscale Aspects of an Extreme Precipitation Event over Nepal in September 2024.” Scientific Online Letters on the Atmosphere, vol. 22, 27, Springer Nature, 2026, doi:10.1007/s44393-026-00024-0.","ieee":"H. Fujinami et al., “Multiscale aspects of an extreme precipitation event over Nepal in September 2024,” Scientific Online Letters on the Atmosphere, vol. 22. Springer Nature, 2026."},"type":"journal_article","article_number":"27","date_published":"2026-06-04T00:00:00Z","day":"04","doi":"10.1007/s44393-026-00024-0","researchdata_availability":"no","DOAJ_listed":"1","year":"2026","PlanS_conform":"1","OA_place":"publisher","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","das_tickbox":"1","_id":"21995","date_updated":"2026-07-22T06:14:16Z","publication_identifier":{"eissn":["1349-6476"]},"month":"06"},{"department":[{"_id":"GradSch"},{"_id":"ChLa"}],"publisher":"Institute of Science and Technology Austria","alternative_title":["ISTA Thesis"],"author":[{"id":"e499926b-f6e0-11ea-865d-9c63db0031e8","first_name":"Jonathan A","last_name":"Scott","full_name":"Scott, Jonathan A"}],"corr_author":"1","oa":1,"has_accepted_license":"1","status":"public","title":"Data heterogeneity and personalization in federated learning","article_processing_charge":"No","publication_status":"published","oa_version":"Published Version","related_material":{"record":[{"status":"public","relation":"part_of_dissertation","id":"20819"},{"id":"17411","relation":"part_of_dissertation","status":"public"},{"relation":"part_of_dissertation","status":"public","id":"18120"},{"relation":"part_of_dissertation","status":"public","id":"21207"}]},"date_created":"2026-02-09T14:59:53Z","file_date_updated":"2026-02-27T10:25:41Z","degree_awarded":"PhD","page":"158","abstract":[{"lang":"eng","text":"In recent years there has been a massive increase in the amount of data generated in a\r\ndecentralized manner. Ever more powerful edge devices, such as smartphones, have become\r\nubiquitous in most societies on earth. Through text typed, photos taken and apps used,\r\nthese devices, which we refer to as clients, generate enormous amounts of high quality and\r\ncomplex data. Moreover, the nature of these devices means the data they generate is often\r\nsensitive and privacy concerns prevent it being gathered and stored in a central location. This\r\npresents a challenge to the modern machine learning paradigm that requires central access\r\nto large amounts of data. Federated learning (FL) has emerged as one of the answers to\r\nthis problem. Rather than bringing the data to the model, FL sends the model to the data.\r\nModel training takes place on device, with periodically synchronized updates, allowing data to\r\nremain locally stored. While this approach offers significant privacy advantages it comes with\r\nits own set of unique challenges. These include: data heterogeneity, the notion that different\r\ndevices generate data in distinct ways which can negatively impact training dynamics; systems\r\nheterogeneity, meaning that different devices may have differing hardware specifications; high\r\ncommunication costs, which are induced by the repeated transferring of models over the\r\nnetwork and low device computational power, which limits the use of larger models on device.\r\nIn this thesis we present a range of methods for federated learning. We focus primarily on\r\nthe challenge of data heterogeneity, though the methods presented are designed to be well\r\nadapted to the other challenges of a federated setting, such as the constraints of limited\r\ncompute and communication overhead. We first present a method for explicitly modeling client\r\ndata heterogeneity. The approach formulates clients as samples from a certain probability\r\ndistribution and infers the parameters of this distribution from the available training clients.\r\nThis learned distribution then represents the heterogeneity present among the clients and can\r\nbe sampled from in order to create new simulated clients that are similar to the real clients we\r\nhave observed so far. Following this we present two methods for directly dealing with data\r\nheterogeneity through personalization. Highly heterogeneous client data distributions can mean\r\nthat learning a single global model becomes suboptimal, and some form of personalization of\r\nmodels to each individual client is required. Our approaches are based around hypernetworks,\r\nwhich we use to generate personalized model parameters without the need for additional\r\ntraining or finetuning. In the first approach we focus on generating full parameterizations of\r\nclient models using learned embeddings of client data and labels, with a hypernetwork located\r\non the central server. In the second approach we address the more challenging scenario where\r\nwe want to generate a personalized model for a client without any label information. The\r\nhypernetwork is trained to generate a low dimensional representation of a client’s personalized\r\nmodel parameters, allowing it to be transferred to and run on the client devices. In our final\r\npresented method, we change our focus and rather than aim to directly address the challenge\r\nof data heterogeneity, we instead ensure we are unaffected by it. This is done in the context\r\nof k-means clustering and we present a method for federated clustering with a focus on added\r\nprivacy guarantees."}],"file":[{"access_level":"closed","date_created":"2026-02-17T11:46:22Z","checksum":"121c1d968bd86f3630aa7e81d5bbbcb0","content_type":"application/zip","file_name":"2026_Scott_Jonathan_Thesis_Source.zip","relation":"source_file","creator":"jscott","file_id":"21298","file_size":272379252,"date_updated":"2026-02-17T11:46:22Z"},{"date_updated":"2026-02-27T10:25:41Z","file_id":"21366","file_size":15220298,"creator":"jscott","relation":"main_file","content_type":"application/pdf","file_name":"2026_Jonathan_Scott_Thesis.pdf","date_created":"2026-02-27T10:25:41Z","success":1,"access_level":"open_access","checksum":"6e3e08ba474bbee8511cc8a839ab2077"}],"publication_identifier":{"issn":["2663-337X"]},"acknowledged_ssus":[{"_id":"ScienComp"}],"month":"02","OA_place":"publisher","year":"2026","date_updated":"2026-07-22T06:34:27Z","supervisor":[{"orcid":"0000-0001-8622-7887","full_name":"Lampert, Christoph","last_name":"Lampert","id":"40C20FD2-F248-11E8-B48F-1D18A9856A87","first_name":"Christoph"}],"_id":"21198","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","day":"09","date_published":"2026-02-09T00:00:00Z","doi":"10.15479/AT-ISTA-21198","acknowledgement":"This research was funded in part by the Austrian Science Fund (FWF)\r\n[10.55776/COE12]. Furthermore, the candidate acknowledges the support from the Scientific\r\nService Units (SSU) of ISTA through resources provided by Scientific Computing (SciComp).","language":[{"iso":"eng"}],"type":"dissertation","citation":{"apa":"Scott, J. A. (2026). Data heterogeneity and personalization in federated learning. Institute of Science and Technology Austria. https://doi.org/10.15479/AT-ISTA-21198","ista":"Scott JA. 2026. Data heterogeneity and personalization in federated learning. Institute of Science and Technology Austria.","ieee":"J. A. Scott, “Data heterogeneity and personalization in federated learning,” Institute of Science and Technology Austria, 2026.","ama":"Scott JA. Data heterogeneity and personalization in federated learning. 2026. doi:10.15479/AT-ISTA-21198","short":"J.A. Scott, Data Heterogeneity and Personalization in Federated Learning, Institute of Science and Technology Austria, 2026.","chicago":"Scott, Jonathan A. “Data Heterogeneity and Personalization in Federated Learning.” Institute of Science and Technology Austria, 2026. https://doi.org/10.15479/AT-ISTA-21198.","mla":"Scott, Jonathan A. Data Heterogeneity and Personalization in Federated Learning. Institute of Science and Technology Austria, 2026, doi:10.15479/AT-ISTA-21198."},"ddc":["005"]},{"month":"01","acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"ScienComp"}],"publication_identifier":{"issn":["2663-337X"]},"supervisor":[{"last_name":"Edelsbrunner","first_name":"Herbert","id":"3FB178DA-F248-11E8-B48F-1D18A9856A87","full_name":"Edelsbrunner, Herbert","orcid":"0000-0002-9823-6833"},{"full_name":"Wagner, Uli","orcid":"0000-0002-1494-0568","id":"36690CA2-F248-11E8-B48F-1D18A9856A87","first_name":"Uli","last_name":"Wagner"}],"_id":"21021","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","date_updated":"2026-07-22T06:33:54Z","year":"2026","OA_place":"publisher","doi":"10.15479/AT-ISTA-21021","date_published":"2026-01-21T00:00:00Z","day":"21","ddc":["514","516"],"citation":{"ista":"Fillmore CD. 2026. Braiding geometry and topology to study shapes and data. Institute of Science and Technology Austria.","apa":"Fillmore, C. D. (2026). Braiding geometry and topology to study shapes and data. Institute of Science and Technology Austria. https://doi.org/10.15479/AT-ISTA-21021","mla":"Fillmore, Christopher D. Braiding Geometry and Topology to Study Shapes and Data. Institute of Science and Technology Austria, 2026, doi:10.15479/AT-ISTA-21021.","chicago":"Fillmore, Christopher D. “Braiding Geometry and Topology to Study Shapes and Data.” Institute of Science and Technology Austria, 2026. https://doi.org/10.15479/AT-ISTA-21021.","ama":"Fillmore CD. Braiding geometry and topology to study shapes and data. 2026. doi:10.15479/AT-ISTA-21021","short":"C.D. Fillmore, Braiding Geometry and Topology to Study Shapes and Data, Institute of Science and Technology Austria, 2026.","ieee":"C. D. Fillmore, “Braiding geometry and topology to study shapes and data,” Institute of Science and Technology Austria, 2026."},"type":"dissertation","language":[{"iso":"eng"}],"acknowledgement":"The research presented in this thesis was funded by the DFG Collaborative Research\r\nCenter TRR 109, ‘Discretization in Geometry and Dynamics’.\r\n","author":[{"full_name":"Fillmore, Christopher D","id":"35638A5C-AAC7-11E9-B0BF-5503E6697425","first_name":"Christopher D","last_name":"Fillmore"}],"corr_author":"1","alternative_title":["ISTA Thesis"],"department":[{"_id":"GradSch"},{"_id":"HeEd"},{"_id":"UlWa"}],"publisher":"Institute of Science and Technology Austria","has_accepted_license":"1","status":"public","oa":1,"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"date_created":"2026-01-20T21:38:40Z","related_material":{"record":[{"id":"20260","relation":"part_of_dissertation","status":"public"},{"status":"public","relation":"part_of_dissertation","id":"21051"},{"id":"21050","relation":"part_of_dissertation","status":"public"}]},"oa_version":"Published Version","publication_status":"published","title":"Braiding geometry and topology to study shapes and data","article_processing_charge":"No","file":[{"file_size":55954297,"file_id":"21046","date_updated":"2026-01-30T11:40:09Z","checksum":"4c0889130095c31d4e5088c5b8dfd607","date_created":"2026-01-26T19:44:46Z","access_level":"open_access","creator":"cfillmor","content_type":"application/pdf","file_name":"2025_Fillmore_Christopher_Thesis.pdf","relation":"main_file"},{"access_level":"closed","date_created":"2026-01-26T19:46:20Z","checksum":"d69afb71d82ab98f856886126ee7303a","relation":"source_file","file_name":"Thesis.zip","content_type":"application/x-zip-compressed","creator":"cfillmor","file_id":"21047","file_size":166080788,"date_updated":"2026-01-26T19:46:20Z"}],"page":"122","abstract":[{"lang":"eng","text":"This thesis examines how geometry and topology intersect in the representation, transformation, and analysis of complex shapes. It considers how continuous manifolds relate to their discrete analogues, how topological structures evolve in persistence vineyards, and how tools from topological data analysis can illuminate problems in mathematical physics. Central to this exploration is the question of how structure, both geometric and topological, persists or changes under approximation, sampling, or deformation. The work develops new approaches to skeletal and grid-based representations of surfaces, reveals the full expressive capacity of persistence vineyards, and applies topological methods to the longstanding problem of equilibria in electrostatic fields. These threads braid together into a broader understanding of how topology and geometry inform one another across theory, computation, and application."}],"degree_awarded":"PhD","file_date_updated":"2026-01-30T11:40:09Z"},{"abstract":[{"text":"In 1873, James C. Maxwell conjectured that the electric field generated by n point charges in generic position has at most (n-1)^2 isolated zeroes. The first (nonoptimal) upper bound was only obtained in 2007 by Gabrielov, Novikov, and Shapiro, who also posed two additional interesting conjectures. In this article, we give the best upper bound known to date on the number of zeroes of the electric field, and construct a counterexample to Conjecture 1.8 by Gabrielov, Novikov, and Shapiro that the number of equilibria cannot exceed those of the distance function defined by the unit point charges. Finally, we note that it is quite possible that Maxwell's quadratic upper bound is not tight, so it is prudent to find lower bounds. Hence, we also explore examples and construct configurations of charges achieving the highest ratios of the number of electric field zeroes by point charges found to this day.","lang":"eng"}],"external_id":{"arxiv":["2501.05315"]},"article_type":"original","issue":"5","OA_type":"green","publication_status":"published","date_created":"2026-05-31T22:02:13Z","oa_version":"Preprint","related_material":{"record":[{"id":"21050","relation":"earlier_version","status":"public"}]},"arxiv":1,"article_processing_charge":"No","title":"Counting equilibria of the electrostatic potential","status":"public","scopus_import":"1","oa":1,"author":[{"orcid":"0000-0002-9823-6833","full_name":"Edelsbrunner, Herbert","last_name":"Edelsbrunner","first_name":"Herbert","id":"3FB178DA-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Fillmore, Christopher D","last_name":"Fillmore","first_name":"Christopher D","id":"35638A5C-AAC7-11E9-B0BF-5503E6697425"},{"last_name":"Oliveira","id":"58abbde8-f455-11eb-a497-98c8fd71b905","first_name":"Goncalo","full_name":"Oliveira, Goncalo"}],"corr_author":"1","publisher":"Wiley","department":[{"_id":"HeEd"},{"_id":"TaHa"}],"volume":132,"type":"journal_article","citation":{"ieee":"H. Edelsbrunner, C. D. Fillmore, and G. Oliveira, “Counting equilibria of the electrostatic potential,” Proceedings of the London Mathematical Society, vol. 132, no. 5. Wiley, 2026.","short":"H. Edelsbrunner, C.D. Fillmore, G. Oliveira, Proceedings of the London Mathematical Society 132 (2026).","ama":"Edelsbrunner H, Fillmore CD, Oliveira G. Counting equilibria of the electrostatic potential. Proceedings of the London Mathematical Society. 2026;132(5). doi:10.1112/plms.70163","mla":"Edelsbrunner, Herbert, et al. “Counting Equilibria of the Electrostatic Potential.” Proceedings of the London Mathematical Society, vol. 132, no. 5, e70163, Wiley, 2026, doi:10.1112/plms.70163.","chicago":"Edelsbrunner, Herbert, Christopher D Fillmore, and Goncalo Oliveira. “Counting Equilibria of the Electrostatic Potential.” Proceedings of the London Mathematical Society. Wiley, 2026. https://doi.org/10.1112/plms.70163.","apa":"Edelsbrunner, H., Fillmore, C. D., & Oliveira, G. (2026). Counting equilibria of the electrostatic potential. Proceedings of the London Mathematical Society. Wiley. https://doi.org/10.1112/plms.70163","ista":"Edelsbrunner H, Fillmore CD, Oliveira G. 2026. Counting equilibria of the electrostatic potential. Proceedings of the London Mathematical Society. 132(5), e70163."},"quality_controlled":"1","language":[{"iso":"eng"}],"publication":"Proceedings of the London Mathematical Society","intvolume":" 132","doi":"10.1112/plms.70163","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2501.05315"}],"date_published":"2026-05-01T00:00:00Z","article_number":"e70163","day":"01","_id":"21931","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-07-22T06:33:54Z","year":"2026","OA_place":"repository","month":"05","publication_identifier":{"eissn":["1460-244X"],"issn":["0024-6115"]}},{"status":"public","has_accepted_license":"1","oa":1,"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"corr_author":"1","author":[{"full_name":"Elkner, Mischa M","id":"477faa59-080d-11ed-979a-c693ab7638ab","first_name":"Mischa M","last_name":"Elkner"}],"project":[{"grant_number":"P35847","name":"Geometry of the tip of the global nilpotent cone","_id":"34b2c9cb-11ca-11ed-8bc3-a50ba74ca4a3"}],"publisher":"Springer Nature","department":[{"_id":"TaHa"}],"external_id":{"arxiv":["2411.16270"]},"abstract":[{"lang":"eng","text":"We study Kirillov algebras attached to minuscule highest weight representations of semisimple Lie algebras. They can be viewed as equivariant cohomology algebras of partial flag varieties. Real structures on the varieties then induce involutions of these algebras. We describe how these involutions act on the spectra of minuscule Kirillov algebras, and model the fixed points via the equivariant cohomology of real partial flag varieties. We then use this model to characterise freeness of the fixed point coordinate ring over the appropriate base. As an application, we recover a q = -1 phenomenon of Stembridge in the minuscule case by geometric means."}],"article_type":"original","OA_type":"hybrid","date_created":"2026-03-23T15:10:43Z","oa_version":"Published Version","publication_status":"epub_ahead","arxiv":1,"article_processing_charge":"Yes (via OA deal)","title":"On involutions of minuscule Kirillov algebras induced by real structures","das_tickbox":"1","_id":"21489","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-07-22T07:37:35Z","year":"2026","OA_place":"publisher","month":"03","publication_identifier":{"issn":["1083-4362"],"eissn":["1531-586X"]},"ddc":["510"],"type":"journal_article","citation":{"ieee":"M. M. Elkner, “On involutions of minuscule Kirillov algebras induced by real structures,” Transformation Groups. Springer Nature, 2026.","chicago":"Elkner, Mischa M. “On Involutions of Minuscule Kirillov Algebras Induced by Real Structures.” Transformation Groups. Springer Nature, 2026. https://doi.org/10.1007/s00031-026-09958-y.","mla":"Elkner, Mischa M. “On Involutions of Minuscule Kirillov Algebras Induced by Real Structures.” Transformation Groups, Springer Nature, 2026, doi:10.1007/s00031-026-09958-y.","short":"M.M. Elkner, Transformation Groups (2026).","ama":"Elkner MM. On involutions of minuscule Kirillov algebras induced by real structures. Transformation Groups. 2026. doi:10.1007/s00031-026-09958-y","apa":"Elkner, M. M. (2026). On involutions of minuscule Kirillov algebras induced by real structures. Transformation Groups. Springer Nature. https://doi.org/10.1007/s00031-026-09958-y","ista":"Elkner MM. 2026. On involutions of minuscule Kirillov algebras induced by real structures. Transformation Groups."},"quality_controlled":"1","language":[{"iso":"eng"}],"publication":"Transformation Groups","acknowledgement":"I would like to thank Tamás Hausel for introducing me to this area of mathematics and for his constant guidance. I would also like to thank Jakub Löwit and Miguel González for fruitful discussions and many helpful comments on this paper. This work was done during the author’s PhD studies at the Institute of Science and Technology Austria (ISTA). It was funded by the Austrian Science Fund (FWF) 10.55776/P35847. Open access funding provided by Institute of Science and Technology (IST Austria). ","doi":"10.1007/s00031-026-09958-y","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1007/s00031-026-09958-y"}],"date_published":"2026-03-14T00:00:00Z","day":"14"},{"page":"8393-8396","citation":{"apa":"Damie, M., & Cyffers, E. A. L. (n.d.). Fedivertex: A graph dataset based on decentralized Social Media. In 2026 Proceedings of the ACM Web Conference (pp. 8393–8396). Dubai: ACM. https://doi.org/10.1145/3774904.3792868","ista":"Damie M, Cyffers EAL. Fedivertex: A graph dataset based on decentralized Social Media. 2026 Proceedings of the ACM Web Conference. WWW: Web Conference, 8393–8396.","ieee":"M. Damie and E. A. L. Cyffers, “Fedivertex: A graph dataset based on decentralized Social Media,” in 2026 Proceedings of the ACM Web Conference, Dubai, pp. 8393–8396.","ama":"Damie M, Cyffers EAL. Fedivertex: A graph dataset based on decentralized Social Media. In: 2026 Proceedings of the ACM Web Conference. ACM; :8393-8396. doi:10.1145/3774904.3792868","short":"M. Damie, E.A.L. Cyffers, in:, 2026 Proceedings of the ACM Web Conference, ACM, n.d., pp. 8393–8396.","mla":"Damie, Marc, and Edwige Audrey Lucienne Cyffers. “Fedivertex: A Graph Dataset Based on Decentralized Social Media.” 2026 Proceedings of the ACM Web Conference, ACM, pp. 8393–96, doi:10.1145/3774904.3792868.","chicago":"Damie, Marc, and Edwige Audrey Lucienne Cyffers. “Fedivertex: A Graph Dataset Based on Decentralized Social Media.” In 2026 Proceedings of the ACM Web Conference, 8393–96. ACM, n.d. https://doi.org/10.1145/3774904.3792868."},"type":"conference","abstract":[{"text":"Social network graphs are central to graph learning research, serving as standard benchmarks for algorithm evaluation. However, existing datasets focus mainly on mainstream social media platforms whose structures are shaped notably by algorithmic recommendations. This raises an important question: would alternative, decentralized social networks exhibit different properties? We address this by studying the Fediverse; a collection of decentralized social networks (such as Mastodon and Lemmy). These platforms differ fundamentally from for-profit social media, notably in decentralization and absence of recommendation algorithms, which may yield distinct graph structures. We introduce Fedivertex, a dataset of over 400 graphs from seven decentralized networks, collected weekly over six months. The dataset, released with a companion Python package to facilitate its use, supports research on temporal and structural aspects of decentralized social networks. In particular, we benchmark applications to decentralized machine learning and community detection.","lang":"eng"}],"language":[{"iso":"eng"}],"publication":"2026 Proceedings of the ACM Web Conference","doi":"10.1145/3774904.3792868","OA_type":"closed access","publication_status":"accepted","oa_version":"None","date_created":"2026-05-24T22:01:32Z","date_published":"2026-04-12T00:00:00Z","day":"12","article_processing_charge":"No","title":"Fedivertex: A graph dataset based on decentralized Social Media","_id":"21916","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","date_updated":"2026-07-22T07:38:14Z","scopus_import":"1","conference":{"end_date":"2026-07-03","name":"WWW: Web Conference","location":"Dubai","start_date":"2026-06-29"},"year":"2026","month":"04","author":[{"full_name":"Damie, Marc","first_name":"Marc","last_name":"Damie"},{"full_name":"Cyffers, Edwige Audrey Lucienne","id":"20d4c299-977a-11ef-ae55-98b15ac64a57","first_name":"Edwige Audrey Lucienne","last_name":"Cyffers"}],"publisher":"ACM","department":[{"_id":"ChLa"}],"publication_identifier":{"isbn":["9798400723070"]}}]