[{"fulldoi":"https://doi.org/10.48550/arXiv.2505.17858","month":"05","article_processing_charge":"No","oa_version":"Preprint","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2026-01-20T10:12:21Z","author":[{"first_name":"Yossi","full_name":"Bleile, Yossi","orcid":"0000-0002-4861-9174","last_name":"Bleile","id":"920a7385-7995-11ef-9bfd-8c434cd8f3c2"},{"full_name":"Fajstrup, Lisbeth","first_name":"Lisbeth","last_name":"Fajstrup"},{"full_name":"Heiss, Teresa","first_name":"Teresa","orcid":"0000-0002-1780-2689","id":"4879BB4E-F248-11E8-B48F-1D18A9856A87","last_name":"Heiss"},{"last_name":"Svane","first_name":"Anne Marie","full_name":"Svane, Anne Marie"},{"last_name":"Sørensen","full_name":"Sørensen, Søren Strandskov","first_name":"Søren Strandskov"}],"acknowledgement":"Y. B. B. and L. F. were funded by the Independent Research Fund Denmark, grant\r\nnumber 1026-00037. T. H. was partially supported by the European Research Council\r\n(ERC) Horizon 2020, grant number 788183.","project":[{"_id":"266A2E9E-B435-11E9-9278-68D0E5697425","name":"Alpha Shape Theory Extended","grant_number":"788183","call_identifier":"H2020"}],"department":[{"_id":"HeEd"}],"day":"23","language":[{"iso":"eng"}],"publication_status":"submitted","publication":"arXiv","das_tickbox":"1","ec_funded":1,"arxiv":1,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2505.17858"}],"citation":{"short":"Y. Bokor Bleile, L. Fajstrup, T. Heiss, A.M. Svane, S.S. Sørensen, ArXiv (n.d.).","apa":"Bokor Bleile, Y., Fajstrup, L., Heiss, T., Svane, A. M., & Sørensen, S. S. (n.d.). Identifying cobordisms using kernel persistence. arXiv. https://doi.org/10.48550/arXiv.2505.17858","ieee":"Y. Bokor Bleile, L. Fajstrup, T. Heiss, A. M. Svane, and S. S. Sørensen, “Identifying cobordisms using kernel persistence,” arXiv. .","ista":"Bokor Bleile Y, Fajstrup L, Heiss T, Svane AM, Sørensen SS. Identifying cobordisms using kernel persistence. arXiv, 2505.17858.","mla":"Bokor Bleile, Yossi, et al. “Identifying Cobordisms Using Kernel Persistence.” ArXiv, 2505.17858, doi:10.48550/arXiv.2505.17858.","ama":"Bokor Bleile Y, Fajstrup L, Heiss T, Svane AM, Sørensen SS. Identifying cobordisms using kernel persistence. arXiv. doi:10.48550/arXiv.2505.17858","chicago":"Bokor Bleile, Yossi, Lisbeth Fajstrup, Teresa Heiss, Anne Marie Svane, and Søren Strandskov Sørensen. “Identifying Cobordisms Using Kernel Persistence.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2505.17858."},"year":"2025","title":"Identifying cobordisms using kernel persistence","oa":1,"OA_type":"green","OA_place":"repository","abstract":[{"text":"Motivated by applications in chemistry, we give a homlogical definition of tunnels, or more generally cobordisms, connecting disjoint parts of a cell complex. For a filtered complex, this defines a persistence module. We give a method for identifying birth and death times using kernel persistence and a matrix reduction algorithm for pairing birth and death times.","lang":"eng"}],"external_id":{"arxiv":["2505.17858"]},"status":"public","type":"preprint","date_updated":"2026-07-22T06:33:07Z","_id":"21016","doi":"10.48550/arXiv.2505.17858","date_published":"2025-05-23T00:00:00Z","article_number":"2505.17858"},{"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"date_published":"2025-05-02T00:00:00Z","doi":"10.5281/ZENODO.15321721","_id":"20940","date_updated":"2026-07-22T06:21:33Z","status":"public","related_material":{"record":[{"id":"20927","status":"public","relation":"used_in_publication"}]},"type":"research_data_reference","OA_type":"green","OA_place":"repository","oa":1,"title":"Mode dispersion with magnetic field in a cavity-magnonics system","department":[{"_id":"MaIb"},{"_id":"JoFi"}],"day":"02","publisher":"Zenodo","abstract":[{"text":"These are the raw data files that supplement our study of mode dispersion with magnetic field of a cavity-magnonics system containing chromium trichloride on coplanar waveguide resonator.","lang":"eng"}],"date_created":"2026-01-05T10:00:06Z","year":"2025","author":[{"last_name":"Mandal","first_name":"Supriya","full_name":"Mandal, Supriya"},{"last_name":"Maji","id":"76bc9e9f-ba0b-11ee-8184-90edabd17a58","full_name":"Maji, Krishnendu","first_name":"Krishnendu"},{"last_name":"Kapoor","id":"84b9700b-15b2-11ec-abd3-831089e67615","orcid":"0000-0001-8319-2148","first_name":"Lucky","full_name":"Kapoor, Lucky"},{"full_name":"Sasmal, Souvik","first_name":"Souvik","last_name":"Sasmal"},{"last_name":"Manni","full_name":"Manni, Soham","first_name":"Soham"},{"full_name":"Jesudasan, John","first_name":"John","last_name":"Jesudasan"},{"last_name":"Raychaudhuri","full_name":"Raychaudhuri, Pratap","first_name":"Pratap"},{"full_name":"Thamizhavel, Arumugam","first_name":"Arumugam","last_name":"Thamizhavel"},{"first_name":"Mandar M.","full_name":"Deshmukh, Mandar M.","last_name":"Deshmukh"}],"has_accepted_license":"1","oa_version":"Published Version","article_processing_charge":"No","month":"05","fulldoi":"https://doi.org/10.5281/ZENODO.15321721","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"short":"S. Mandal, K. Maji, L. Kapoor, S. Sasmal, S. Manni, J. Jesudasan, P. Raychaudhuri, A. Thamizhavel, M.M. Deshmukh, (2025).","ista":"Mandal S, Maji K, Kapoor L, Sasmal S, Manni S, Jesudasan J, Raychaudhuri P, Thamizhavel A, Deshmukh MM. 2025. Mode dispersion with magnetic field in a cavity-magnonics system, Zenodo, 10.5281/ZENODO.15321721.","ieee":"S. Mandal et al., “Mode dispersion with magnetic field in a cavity-magnonics system.” Zenodo, 2025.","apa":"Mandal, S., Maji, K., Kapoor, L., Sasmal, S., Manni, S., Jesudasan, J., … Deshmukh, M. M. (2025). Mode dispersion with magnetic field in a cavity-magnonics system. Zenodo. https://doi.org/10.5281/ZENODO.15321721","ama":"Mandal S, Maji K, Kapoor L, et al. Mode dispersion with magnetic field in a cavity-magnonics system. 2025. doi:10.5281/ZENODO.15321721","mla":"Mandal, Supriya, et al. Mode Dispersion with Magnetic Field in a Cavity-Magnonics System. Zenodo, 2025, doi:10.5281/ZENODO.15321721.","chicago":"Mandal, Supriya, Krishnendu Maji, Lucky Kapoor, Souvik Sasmal, Soham Manni, John Jesudasan, Pratap Raychaudhuri, Arumugam Thamizhavel, and Mandar M. Deshmukh. “Mode Dispersion with Magnetic Field in a Cavity-Magnonics System.” Zenodo, 2025. https://doi.org/10.5281/ZENODO.15321721."},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.5281/ZENODO.15321721"}]},{"citation":{"chicago":"Bolan, Matthew, Joachim Breitner, Jose Brox, Nicholas Carlini, Mario Carneiro, Floris van Doorn, Martin Dvorak, et al. “The Equational Theories Project: Advancing Collaborative Mathematical Research at Scale.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2512.07087.","ama":"Bolan M, Breitner J, Brox J, et al. The equational theories project: Advancing collaborative mathematical research at scale. arXiv. doi:10.48550/arXiv.2512.07087","mla":"Bolan, Matthew, et al. “The Equational Theories Project: Advancing Collaborative Mathematical Research at Scale.” ArXiv, 2512.07087, doi:10.48550/arXiv.2512.07087.","apa":"Bolan, M., Breitner, J., Brox, J., Carlini, N., Carneiro, M., Doorn, F. van, … Zheng, F. (n.d.). The equational theories project: Advancing collaborative mathematical research at scale. arXiv. https://doi.org/10.48550/arXiv.2512.07087","ista":"Bolan M, Breitner J, Brox J, Carlini N, Carneiro M, Doorn F van, Dvorak M, Goens A, Hill A, Husum H, Mejia HI, Kocsis ZA, Floch BL, Bar-on A, Luccioli L, McNeil D, Meiburg A, Monticone P, Nielsen PP, Osazuwa EO, Paolini G, Petracci M, Reinke B, Renshaw D, Rossel M, Roux C, Scanvic J, Srinivas S, Tadipatri AR, Tao T, Tsyrklevich V, Vaquerizo-Villar F, Weber D, Zheng F. The equational theories project: Advancing collaborative mathematical research at scale. arXiv, 2512.07087.","ieee":"M. Bolan et al., “The equational theories project: Advancing collaborative mathematical research at scale,” arXiv. .","short":"M. Bolan, J. Breitner, J. Brox, N. Carlini, M. Carneiro, F. van Doorn, M. Dvorak, A. Goens, A. Hill, H. Husum, H.I. Mejia, Z.A. Kocsis, B.L. Floch, A. Bar-on, L. Luccioli, D. McNeil, A. Meiburg, P. Monticone, P.P. Nielsen, E.O. Osazuwa, G. Paolini, M. Petracci, B. Reinke, D. Renshaw, M. Rossel, C. Roux, J. Scanvic, S. Srinivas, A.R. Tadipatri, T. Tao, V. Tsyrklevich, F. Vaquerizo-Villar, D. Weber, F. Zheng, ArXiv (n.d.)."},"arxiv":1,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2512.07087"}],"das_tickbox":"1","year":"2025","external_id":{"arxiv":["2512.07087"]},"abstract":[{"lang":"eng","text":"We report on the Equational Theories Project (ETP), an online collaborative pilot project to explore new ways to collaborate in mathematics with machine assistance. The project successfully determined all 22 028 942 edges of the implication graph between the 4694 simplest equational laws on magmas, by a combination of human-generated and automated proofs, all validated by the formal proof assistant language Lean. As a result of this project, several new constructions of magmas satisfying specific laws were discovered, and several auxiliary questions were also addressed, such as the effect of restricting attention to finite magmas."}],"OA_place":"repository","OA_type":"green","oa":1,"title":"The equational theories project: Advancing collaborative mathematical research at scale","article_number":"2512.07087","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"doi":"10.48550/arXiv.2512.07087","date_published":"2025-12-16T00:00:00Z","_id":"21399","date_updated":"2026-07-22T06:35:39Z","status":"public","type":"preprint","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Preprint","article_processing_charge":"No","month":"12","fulldoi":"https://doi.org/10.48550/arXiv.2512.07087","author":[{"full_name":"Bolan, Matthew","first_name":"Matthew","last_name":"Bolan"},{"first_name":"Joachim","full_name":"Breitner, Joachim","last_name":"Breitner"},{"first_name":"Jose","full_name":"Brox, Jose","last_name":"Brox"},{"first_name":"Nicholas","full_name":"Carlini, Nicholas","last_name":"Carlini"},{"last_name":"Carneiro","full_name":"Carneiro, Mario","first_name":"Mario"},{"last_name":"Doorn","first_name":"Floris van","full_name":"Doorn, Floris van"},{"first_name":"Martin","full_name":"Dvorak, Martin","id":"40ED02A8-C8B4-11E9-A9C0-453BE6697425","orcid":"0000-0001-5293-214X","last_name":"Dvorak"},{"first_name":"Andrés","full_name":"Goens, Andrés","last_name":"Goens"},{"full_name":"Hill, Aaron","first_name":"Aaron","last_name":"Hill"},{"last_name":"Husum","full_name":"Husum, Harald","first_name":"Harald"},{"first_name":"Hernán Ibarra","full_name":"Mejia, Hernán Ibarra","last_name":"Mejia"},{"full_name":"Kocsis, Zoltan A.","first_name":"Zoltan A.","last_name":"Kocsis"},{"last_name":"Floch","first_name":"Bruno Le","full_name":"Floch, Bruno Le"},{"last_name":"Bar-on","full_name":"Bar-on, Amir","first_name":"Amir"},{"last_name":"Luccioli","full_name":"Luccioli, Lorenzo","first_name":"Lorenzo"},{"first_name":"Douglas","full_name":"McNeil, Douglas","last_name":"McNeil"},{"last_name":"Meiburg","full_name":"Meiburg, Alex","first_name":"Alex"},{"full_name":"Monticone, Pietro","first_name":"Pietro","last_name":"Monticone"},{"first_name":"Pace P.","full_name":"Nielsen, Pace P.","last_name":"Nielsen"},{"last_name":"Osazuwa","full_name":"Osazuwa, Emmanuel Osalotioman","first_name":"Emmanuel Osalotioman"},{"last_name":"Paolini","first_name":"Giovanni","full_name":"Paolini, Giovanni"},{"last_name":"Petracci","first_name":"Marco","full_name":"Petracci, Marco"},{"last_name":"Reinke","first_name":"Bernhard","full_name":"Reinke, Bernhard"},{"last_name":"Renshaw","full_name":"Renshaw, David","first_name":"David"},{"last_name":"Rossel","first_name":"Marcus","full_name":"Rossel, Marcus"},{"last_name":"Roux","full_name":"Roux, Cody","first_name":"Cody"},{"first_name":"Jérémy","full_name":"Scanvic, Jérémy","last_name":"Scanvic"},{"full_name":"Srinivas, Shreyas","first_name":"Shreyas","last_name":"Srinivas"},{"last_name":"Tadipatri","full_name":"Tadipatri, Anand Rao","first_name":"Anand Rao"},{"first_name":"Terence","full_name":"Tao, Terence","last_name":"Tao"},{"first_name":"Vlad","full_name":"Tsyrklevich, Vlad","last_name":"Tsyrklevich"},{"full_name":"Vaquerizo-Villar, Fernando","first_name":"Fernando","last_name":"Vaquerizo-Villar"},{"last_name":"Weber","full_name":"Weber, Daniel","first_name":"Daniel"},{"first_name":"Fan","full_name":"Zheng, Fan","last_name":"Zheng"}],"date_created":"2026-03-04T12:00:16Z","department":[{"_id":"GradSch"},{"_id":"VlKo"}],"day":"16","publication":"arXiv","publication_status":"submitted","language":[{"iso":"eng"}]},{"publication":"arXiv","language":[{"iso":"eng"}],"publication_status":"draft","day":"20","department":[{"_id":"HeEd"}],"author":[{"orcid":"0000-0002-9823-6833","last_name":"Edelsbrunner","id":"3FB178DA-F248-11E8-B48F-1D18A9856A87","full_name":"Edelsbrunner, Herbert","first_name":"Herbert"},{"last_name":"Fillmore","id":"35638A5C-AAC7-11E9-B0BF-5503E6697425","full_name":"Fillmore, Christopher D","first_name":"Christopher D"},{"last_name":"Olivera","first_name":"Gonçalo","full_name":"Olivera, Gonçalo"}],"corr_author":"1","date_created":"2026-01-27T14:29:27Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","oa_version":"Preprint","month":"03","fulldoi":"https://doi.org/10.48550/ARXIV.2501.05315","article_number":"2501.05315","_id":"21050","date_published":"2025-03-20T00:00:00Z","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"doi":"10.48550/ARXIV.2501.05315","type":"preprint","related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"21021"},{"relation":"later_version","status":"public","id":"21931"}]},"status":"public","date_updated":"2026-07-22T06:33:55Z","abstract":[{"lang":"eng","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 (non-optimal) upper bound was only obtained in 2007 by Gabrielov, Novikov and Shapiro, who also posed two additional interesting conjectures.\r\n 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 a conjecture of Gabrielov, Novikov and Shapiro that the number of equilibria cannot exceed those of the distance function defined by the unit point charges.\r\n Finally, we note that it is quite possible that Maxwell's quadratic upper bound is not tight, so it is prudent to find smaller 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."}],"external_id":{"arxiv":["2501.05315"]},"OA_place":"repository","OA_type":"green","title":"Counting equilibria of the electrostatic potential","oa":1,"year":"2025","citation":{"ama":"Edelsbrunner H, Fillmore CD, Olivera G. Counting equilibria of the electrostatic potential. arXiv. doi:10.48550/ARXIV.2501.05315","mla":"Edelsbrunner, Herbert, et al. “Counting Equilibria of the Electrostatic Potential.” ArXiv, 2501.05315, doi:10.48550/ARXIV.2501.05315.","chicago":"Edelsbrunner, Herbert, Christopher D Fillmore, and Gonçalo Olivera. “Counting Equilibria of the Electrostatic Potential.” ArXiv, n.d. https://doi.org/10.48550/ARXIV.2501.05315.","short":"H. Edelsbrunner, C.D. Fillmore, G. Olivera, ArXiv (n.d.).","apa":"Edelsbrunner, H., Fillmore, C. D., & Olivera, G. (n.d.). Counting equilibria of the electrostatic potential. arXiv. https://doi.org/10.48550/ARXIV.2501.05315","ista":"Edelsbrunner H, Fillmore CD, Olivera G. Counting equilibria of the electrostatic potential. arXiv, 2501.05315.","ieee":"H. Edelsbrunner, C. D. Fillmore, and G. Olivera, “Counting equilibria of the electrostatic potential,” arXiv. ."},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2501.05315"}],"arxiv":1,"das_tickbox":"1"},{"OA_type":"hybrid","OA_place":"publisher","file_date_updated":"2025-02-17T09:13:41Z","title":"Variability of central stars of planetary nebulae with the zwicky transient facility. I. Methods, short-timescale variables, and the unusual nucleus of WeSb 1","publication_identifier":{"issn":["0004-6280"],"issnl":["0004-6280"]},"oa":1,"abstract":[{"text":"A complete understanding of the central stars of planetary nebulae (CSPNe) remains elusive. Over the past several decades, time-series photometry of CSPNe has yielded significant results including, but not limited to, discoveries of nearly 100 binary systems, insights into pulsations and winds in young white dwarfs, and studies of stars undergoing very late thermal pulses. We have undertaken a systematic study of optical photometric variability of cataloged CSPNe, using the light curves from the Zwicky Transient Facility (ZTF). By applying appropriate variability metrics, we arrive at a list of 94 highly variable CSPN candidates. Based on the timescales of the light-curve activity, we classify the variables broadly into short- and long-timescale variables. In this first paper in this series, we focus on the former, which is the majority class comprising 83 objects. We report periods for six sources for the first time, and recover several known periodic variables. Among the aperiodic sources, most exhibit a jitter around a median flux with a stable amplitude, and a few show outbursts. We draw attention to WeSb 1, which shows a different kind of variability: prominent deep and aperiodic dips, resembling transits from a dust/debris disk. We find strong evidence for a binary nature of WeSb 1 (possibly an F-type subgiant companion). The compactness of the emission lines and inferred high electron densities make WeSb 1 a candidate for either an EGB 6-type planetary nucleus, or a symbiotic system inside an evolved planetary nebula, both of which are rare objects. To demonstrate further promise with ZTF, we report three additional newly identified periodic sources that do not appear in the list of highly variable sources. Finally, we also introduce a two-dimensional metric space defined by the von Neumann statistics and Pearson Skew and demonstrate its effectiveness in identifying unique variables of astrophysical interest, like WeSb 1.","lang":"eng"}],"external_id":{"isi":["001416903300001"],"arxiv":["2410.03589"]},"_id":"19025","date_published":"2025-02-01T00:00:00Z","tmp":{"image":"/images/cc_by.png","name":"Creative Commons Attribution 3.0 Unported (CC BY 3.0)","short":"CC BY (3.0)","legal_code_url":"https://creativecommons.org/licenses/by/3.0/legalcode"},"doi":"10.1088/1538-3873/ada702","type":"journal_article","status":"public","related_material":{"link":[{"relation":"erratum","url":"https://doi.org/10.1088/1538-3873/adbcd8"}]},"date_updated":"2026-07-22T06:39:53Z","volume":137,"article_number":"024201","issue":"2","file":[{"relation":"main_file","content_type":"application/pdf","file_size":3657568,"creator":"dernst","success":1,"file_id":"19034","file_name":"2025_PASP_Bhattacharjee.pdf","checksum":"42b942ee1bf32ed225024e168174be92","date_created":"2025-02-17T09:13:41Z","access_level":"open_access","date_updated":"2025-02-17T09:13:41Z"}],"intvolume":" 137","das_tickbox":"1","citation":{"ista":"Bhattacharjee S, Kulkarni SR, Kong AKH, Tam MS, Bond HE, El-Badry K, Caiazzo I, Chornay N, Graham MJ, Rodriguez AC, Zeimann GR, Fremling C, Drake AJ, Werner K, Rodriguez H, Prince TA, Laher RR, Chen TX, Riddle R. 2025. Variability of central stars of planetary nebulae with the zwicky transient facility. I. Methods, short-timescale variables, and the unusual nucleus of WeSb 1. Publications of the Astronomical Society of the Pacific. 137(2), 024201.","ieee":"S. Bhattacharjee et al., “Variability of central stars of planetary nebulae with the zwicky transient facility. I. Methods, short-timescale variables, and the unusual nucleus of WeSb 1,” Publications of the Astronomical Society of the Pacific, vol. 137, no. 2. IOP Publishing, 2025.","apa":"Bhattacharjee, S., Kulkarni, S. R., Kong, A. K. H., Tam, M. S., Bond, H. E., El-Badry, K., … Riddle, R. (2025). Variability of central stars of planetary nebulae with the zwicky transient facility. I. Methods, short-timescale variables, and the unusual nucleus of WeSb 1. Publications of the Astronomical Society of the Pacific. IOP Publishing. https://doi.org/10.1088/1538-3873/ada702","short":"S. Bhattacharjee, S.R. Kulkarni, A.K.H. Kong, M.S. Tam, H.E. Bond, K. El-Badry, I. Caiazzo, N. Chornay, M.J. Graham, A.C. Rodriguez, G.R. Zeimann, C. Fremling, A.J. Drake, K. Werner, H. Rodriguez, T.A. Prince, R.R. Laher, T.X. Chen, R. Riddle, Publications of the Astronomical Society of the Pacific 137 (2025).","chicago":"Bhattacharjee, Soumyadeep, S. R. Kulkarni, Albert K.H. Kong, M. S. Tam, Howard E. Bond, Kareem El-Badry, Ilaria Caiazzo, et al. “Variability of Central Stars of Planetary Nebulae with the Zwicky Transient Facility. I. Methods, Short-Timescale Variables, and the Unusual Nucleus of WeSb 1.” Publications of the Astronomical Society of the Pacific. IOP Publishing, 2025. https://doi.org/10.1088/1538-3873/ada702.","mla":"Bhattacharjee, Soumyadeep, et al. “Variability of Central Stars of Planetary Nebulae with the Zwicky Transient Facility. I. Methods, Short-Timescale Variables, and the Unusual Nucleus of WeSb 1.” Publications of the Astronomical Society of the Pacific, vol. 137, no. 2, 024201, IOP Publishing, 2025, doi:10.1088/1538-3873/ada702.","ama":"Bhattacharjee S, Kulkarni SR, Kong AKH, et al. Variability of central stars of planetary nebulae with the zwicky transient facility. I. Methods, short-timescale variables, and the unusual nucleus of WeSb 1. Publications of the Astronomical Society of the Pacific. 2025;137(2). doi:10.1088/1538-3873/ada702"},"arxiv":1,"year":"2025","acknowledgement":"This work is based on observations obtained with the Samuel Oschin Telescope 48 inch and the 60 inch Telescope at the Palomar Observatory as part of the Zwicky Transient Facility project. ZTF is supported by the National Science Foundation under grants No. AST-1440341 and AST-2034437 and a collaboration including current partners Caltech, IPAC, the Oskar Klein Center at Stockholm University, the University of Maryland, University of California, Berkeley, the University of Wisconsin at Milwaukee, University of Warwick, Ruhr University Bochum, Cornell University, Northwestern University, and Drexel University. Operations are conducted by COO, IPAC, and UW.\r\n\r\nThis work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC; https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular, the institutions participating in the Gaia Multilateral Agreement.\r\n\r\nWe are grateful to the staffs of Palomar Observatory and the Hobby-Eberly Telescope for assistance with the observations and data management. The Liverpool Telescope is operated on the island of La Palma by Liverpool John Moores University in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias with financial support from the UK Science and Technology Facilities Council.\r\n\r\nThe Low-Resolution Spectrograph 2 (LRS2) on HET was developed and funded by the University of Texas at Austin McDonald Observatory and Department of Astronomy, and by Pennsylvania State University. We thank the Leibniz-Institut für Astrophysik Potsdam (AIP) and the Institut für Astrophysik Göttingen (IAG) for their contributions to the construction of the integral field units. We acknowledge the Texas Advanced Computing Center (TACC) at The University of Texas at Austin for providing high performance computing, visualization, and storage resources that have contributed to the results reported within this paper.\r\n\r\nWe thank the anonymous referee for the detailed comments, which improved the clarity of the manuscript significantly. We also thank Gunter Cibis for pointing out typographical errors in the names of a few PNe in the first draft. S.B. expresses gratitude to Kishalay De for providing the Gattini-IR and WISE data. S.B. thanks Frank J. Masci and Zachary P. Vanderbosch for useful discussions and suggestions regarding solving the issues with ZTF forced photometry on extended sources. S.B. also thanks Jim Fuller, Charles C. Steidel, Lynne Hillenbrand, and Adolfo Carvalho for useful discussions on methods and science. S.B. also thanks David O. Cook for providing access to his CLU image cutout service to generate the WeSb 1 image. S.B. acknowledges the financial support from the Wallace L. W. Sargent Graduate Fellowship during the first year of his graduate studies at Caltech. N.C. was supported through the Cancer Research UK grant A24042. S.B. thanks Martina Veresvarka for drawing our attention to the TESS light curves of WeSb 1.\r\n\r\nWe have used Python packages Numpy (Harris et al. 2020), SciPy (Virtanen et al. 2020), Matplotlib (Hunter 2007), Pandas (pandas development team 2020), Astropy (Astropy Collaboration et al. 2013, 2018), and Astroquery (Ginsburg et al. 2019) at various stages of this research.","isi":1,"scopus_import":"1","department":[{"_id":"IlCa"}],"publisher":"IOP Publishing","day":"01","language":[{"iso":"eng"}],"ddc":["520"],"article_type":"original","publication_status":"published","publication":"Publications of the Astronomical Society of the Pacific","article_processing_charge":"No","oa_version":"Published Version","fulldoi":"https://doi.org/10.1088/1538-3873/ada702","month":"02","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","license":"https://creativecommons.org/licenses/by/3.0/","date_created":"2025-02-16T23:02:33Z","has_accepted_license":"1","author":[{"full_name":"Bhattacharjee, Soumyadeep","first_name":"Soumyadeep","last_name":"Bhattacharjee"},{"full_name":"Kulkarni, S. R.","first_name":"S. R.","last_name":"Kulkarni"},{"first_name":"Albert K.H.","full_name":"Kong, Albert K.H.","last_name":"Kong"},{"full_name":"Tam, M. S.","first_name":"M. S.","last_name":"Tam"},{"last_name":"Bond","first_name":"Howard E.","full_name":"Bond, Howard E."},{"last_name":"El-Badry","first_name":"Kareem","full_name":"El-Badry, Kareem"},{"first_name":"Ilaria","full_name":"Caiazzo, Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d","orcid":"0000-0002-4770-5388","last_name":"Caiazzo"},{"full_name":"Chornay, Nicholas","first_name":"Nicholas","last_name":"Chornay"},{"last_name":"Graham","full_name":"Graham, Matthew J.","first_name":"Matthew J."},{"full_name":"Rodriguez, Antonio C.","first_name":"Antonio C.","last_name":"Rodriguez"},{"full_name":"Zeimann, Gregory R.","first_name":"Gregory R.","last_name":"Zeimann"},{"full_name":"Fremling, Christoffer","first_name":"Christoffer","last_name":"Fremling"},{"full_name":"Drake, Andrew J.","first_name":"Andrew J.","last_name":"Drake"},{"last_name":"Werner","full_name":"Werner, Klaus","first_name":"Klaus"},{"full_name":"Rodriguez, Hector","first_name":"Hector","last_name":"Rodriguez"},{"first_name":"Thomas A.","full_name":"Prince, Thomas A.","last_name":"Prince"},{"first_name":"Russ R.","full_name":"Laher, Russ R.","last_name":"Laher"},{"first_name":"Tracy X.","full_name":"Chen, Tracy X.","last_name":"Chen"},{"first_name":"Reed","full_name":"Riddle, Reed","last_name":"Riddle"}]},{"year":"2025","citation":{"chicago":"Tenhuisen, Sophia F.R., Grace A. Pan, Qi Song, Denitsa Rangelova Baykusheva, Dan Ferenc Segedin, Berit H. Goodge, Hanjong Paik, et al. “Magnetic Excitations in Ndn+1Nin O3n+1 Ruddlesden-Popper Nickelates Observed via Resonant Inelastic x-Ray Scattering.” Physical Review B. American Physical Society, 2025. https://doi.org/10.1103/PhysRevB.111.165145.","mla":"Tenhuisen, Sophia F. R., et al. “Magnetic Excitations in Ndn+1Nin O3n+1 Ruddlesden-Popper Nickelates Observed via Resonant Inelastic x-Ray Scattering.” Physical Review B, vol. 111, no. 16, 165145, American Physical Society, 2025, doi:10.1103/PhysRevB.111.165145.","ama":"Tenhuisen SFR, Pan GA, Song Q, et al. Magnetic excitations in Ndn+1Nin O3n+1 Ruddlesden-Popper nickelates observed via resonant inelastic x-ray scattering. Physical Review B. 2025;111(16). doi:10.1103/PhysRevB.111.165145","ieee":"S. F. R. Tenhuisen et al., “Magnetic excitations in Ndn+1Nin O3n+1 Ruddlesden-Popper nickelates observed via resonant inelastic x-ray scattering,” Physical Review B, vol. 111, no. 16. American Physical Society, 2025.","ista":"Tenhuisen SFR, Pan GA, Song Q, Baykusheva DR, Ferenc Segedin D, Goodge BH, Paik H, Pelliciari J, Bisogni V, Gu Y, Agrestini S, Nag A, García-Fernández M, Zhou KJ, Kourkoutis LF, Brooks CM, Mundy JA, Dean MPM, Mitrano M. 2025. Magnetic excitations in Ndn+1Nin O3n+1 Ruddlesden-Popper nickelates observed via resonant inelastic x-ray scattering. Physical Review B. 111(16), 165145.","apa":"Tenhuisen, S. F. R., Pan, G. A., Song, Q., Baykusheva, D. R., Ferenc Segedin, D., Goodge, B. H., … Mitrano, M. (2025). Magnetic excitations in Ndn+1Nin O3n+1 Ruddlesden-Popper nickelates observed via resonant inelastic x-ray scattering. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.111.165145","short":"S.F.R. Tenhuisen, G.A. Pan, Q. Song, D.R. Baykusheva, D. Ferenc Segedin, B.H. Goodge, H. Paik, J. Pelliciari, V. Bisogni, Y. Gu, S. Agrestini, A. Nag, M. García-Fernández, K.J. Zhou, L.F. Kourkoutis, C.M. Brooks, J.A. Mundy, M.P.M. Dean, M. Mitrano, Physical Review B 111 (2025)."},"arxiv":1,"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2504.07268","open_access":"1"}],"das_tickbox":"1","intvolume":" 111","volume":111,"issue":"16","article_number":"165145","doi":"10.1103/PhysRevB.111.165145","date_published":"2025-04-15T00:00:00Z","_id":"19639","date_updated":"2026-07-22T06:53:20Z","status":"public","type":"journal_article","external_id":{"arxiv":["2504.07268"]},"abstract":[{"text":"Magnetic interactions are thought to play a key role in the properties of many unconventional superconductors, including cuprates, iron pnictides, and square-planar nickelates. Superconductivity was also recently observed in the bilayer and trilayer Ruddlesden-Popper nickelates, the electronic structure of which is expected to differ from that of cuprates and square-planar nickelates. Here we study how electronic structure and magnetic interactions evolve with the number of layers, 𝑛, in thin film Ruddlesden-Popper nickelates Nd𝑛+1⁢Ni𝑛⁢O3⁢𝑛+1 with 𝑛=1,3, and 5 using resonant inelastic x-ray scattering (RIXS). The RIXS spectra are consistent with a high-spin |3⁢𝑑8⁢ 𝐿̲⟩ electronic configuration, resembling that of La2−𝑥⁢Sr𝑥⁢NiO4 and the parent perovskite, NdNiO3. The magnetic excitations soften to lower energy in the structurally self-doped, higher-𝑛 films. Our observations confirm that structural tuning is an effective route for altering electronic properties, such as magnetic superexchange, in this prominent family of materials.","lang":"eng"}],"OA_place":"repository","OA_type":"green","oa":1,"publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"title":"Magnetic excitations in Ndn+1Nin O3n+1 Ruddlesden-Popper nickelates observed via resonant inelastic x-ray scattering","author":[{"last_name":"Tenhuisen","first_name":"Sophia F.R.","full_name":"Tenhuisen, Sophia F.R."},{"full_name":"Pan, Grace A.","first_name":"Grace A.","last_name":"Pan"},{"first_name":"Qi","full_name":"Song, Qi","last_name":"Song"},{"full_name":"Baykusheva, Denitsa Rangelova","first_name":"Denitsa Rangelova","orcid":"0000-0002-7438-1139","last_name":"Baykusheva","id":"71b4d059-2a03-11ee-914d-dfa3beed6530"},{"last_name":"Ferenc Segedin","first_name":"Dan","full_name":"Ferenc Segedin, Dan"},{"last_name":"Goodge","full_name":"Goodge, Berit H.","first_name":"Berit H."},{"last_name":"Paik","first_name":"Hanjong","full_name":"Paik, Hanjong"},{"last_name":"Pelliciari","full_name":"Pelliciari, Jonathan","first_name":"Jonathan"},{"full_name":"Bisogni, Valentina","first_name":"Valentina","last_name":"Bisogni"},{"full_name":"Gu, Yanhong","first_name":"Yanhong","last_name":"Gu"},{"last_name":"Agrestini","first_name":"Stefano","full_name":"Agrestini, Stefano"},{"full_name":"Nag, Abhishek","first_name":"Abhishek","last_name":"Nag"},{"last_name":"García-Fernández","full_name":"García-Fernández, Mirian","first_name":"Mirian"},{"full_name":"Zhou, Ke Jin","first_name":"Ke Jin","last_name":"Zhou"},{"first_name":"Lena F.","full_name":"Kourkoutis, Lena F.","last_name":"Kourkoutis"},{"first_name":"Charles M.","full_name":"Brooks, Charles M.","last_name":"Brooks"},{"full_name":"Mundy, Julia A.","first_name":"Julia A.","last_name":"Mundy"},{"full_name":"Dean, Mark P.M.","first_name":"Mark P.M.","last_name":"Dean"},{"last_name":"Mitrano","first_name":"Matteo","full_name":"Mitrano, Matteo"}],"date_created":"2025-05-04T22:02:31Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Preprint","article_processing_charge":"No","fulldoi":"https://doi.org/10.1103/PhysRevB.111.165145","month":"04","quality_controlled":"1","publication":"Physical Review B","article_type":"original","publication_status":"published","language":[{"iso":"eng"}],"day":"15","department":[{"_id":"DeBa"}],"publisher":"American Physical Society","acknowledgement":"Work by S.F.R.T., D.R.B., J.P., V.B., M.P.M.D., and M.M. was supported by the U.S. Department of Energy (DOE), Division of Materials Science, under Contract No. DE-SC0012704. G.A.P. and D.F.S. are primarily supported by the DOE, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under Grant No. DE-SC0021925, and by NSF Graduate Research Fellowship Grant No. DGE-1745303. S.F.R.T. acknowledges additional support from the DOE, Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) program. The SCGSR program is administered by the Oak Ridge Institute for Science and Education for the DOE under Contract No. DE-SC0014664. G.A.P. acknowledges additional support from the Paul and Daisy Soros Fellowship for New Americans. Q.S. was supported by the Science and Technology Center for Integrated Quantum Materials, NSF Grant No. DMR-1231319. B.H.G and L.F.K. acknowledge support by PARADIM, NSF Grant No. DMR-2039380. J.A.M. acknowledges support from the DOE, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under Grant No. DE-SC0021925. Materials growth and electron microscopy were supported by PARADIM under NSF Cooperative Agreement Grant No. DMR-2039380. Electron microscopy made use of the Cornell Center for Materials Research Shared Facilities. The Thermo Fisher Spectra 300 X-CFEG was acquired with support from PARADIM, an NSF Materials Innovation Platforms (Grant No. DMR-2039380), and Cornell University. The FEI Titan Themis 300 was acquired through Grant No. NSF-MRI-1429155, with additional support from Cornell University, the Weill Institute, and the Kavli Institute at Cornell University. The Thermo Fisher Helios G4 UX FIB was acquired with support by NSF Grant No. DMR-1539918. This research used beamline 2-ID of the National Synchrotron Light Source II, a DOE Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE-SC0012704. We acknowledge Diamond Light Source for time on Beamline I21 under Proposal No. MM27484.","scopus_import":"1"},{"author":[{"id":"03a7e858-01b1-11ec-8b71-99ae6c4a05bc","last_name":"Horta","first_name":"Sharona","full_name":"Horta, Sharona"}],"year":"2025","date_created":"2025-07-21T08:22:29Z","corr_author":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"short":"S. Horta, in:, Proceedings of the MATSUS Spring 2025 Conference, Fundació de la comunitat valenciana SCITO, 2025.","ieee":"S. Horta, “Solid state diffusion in metal-semiconductors core-shell nanoparticle,” in Proceedings of the MATSUS Spring 2025 Conference, Sevilla, Spain, 2025.","ista":"Horta S. 2025. Solid state diffusion in metal-semiconductors core-shell nanoparticle. Proceedings of the MATSUS Spring 2025 Conference. MATSUS: Materials for Sustainable Development Conference, 220.","apa":"Horta, S. (2025). Solid state diffusion in metal-semiconductors core-shell nanoparticle. In Proceedings of the MATSUS Spring 2025 Conference. Sevilla, Spain: Fundació de la comunitat valenciana SCITO. https://doi.org/10.29363/nanoge.matsusspring.2025.220","ama":"Horta S. Solid state diffusion in metal-semiconductors core-shell nanoparticle. In: Proceedings of the MATSUS Spring 2025 Conference. Fundació de la comunitat valenciana SCITO; 2025. doi:10.29363/nanoge.matsusspring.2025.220","mla":"Horta, Sharona. “Solid State Diffusion in Metal-Semiconductors Core-Shell Nanoparticle.” Proceedings of the MATSUS Spring 2025 Conference, 220, Fundació de la comunitat valenciana SCITO, 2025, doi:10.29363/nanoge.matsusspring.2025.220.","chicago":"Horta, Sharona. “Solid State Diffusion in Metal-Semiconductors Core-Shell Nanoparticle.” In Proceedings of the MATSUS Spring 2025 Conference. Fundació de la comunitat valenciana SCITO, 2025. https://doi.org/10.29363/nanoge.matsusspring.2025.220."},"month":"03","fulldoi":"https://doi.org/10.29363/nanoge.matsusspring.2025.220","quality_controlled":"1","oa_version":"None","article_processing_charge":"No","article_number":"220","publication":"Proceedings of the MATSUS Spring 2025 Conference","date_updated":"2026-07-22T06:54:55Z","type":"conference_abstract","status":"public","doi":"10.29363/nanoge.matsusspring.2025.220","date_published":"2025-03-03T00:00:00Z","publication_status":"published","_id":"20054","language":[{"iso":"eng"}],"day":"03","department":[{"_id":"MaIb"}],"publisher":"Fundació de la comunitat valenciana SCITO","conference":{"location":"Sevilla, Spain","start_date":"2025-03-03","end_date":"2025-03-07","name":"MATSUS: Materials for Sustainable Development Conference"},"title":"Solid state diffusion in metal-semiconductors core-shell nanoparticle","OA_type":"closed access"},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"Yes","oa_version":"Published Version","quality_controlled":"1","fulldoi":"https://doi.org/10.4171/jems/1601","month":"03","author":[{"first_name":"Michael","full_name":"Groechenig, Michael","last_name":"Groechenig"},{"full_name":"Shen, Shiyu","first_name":"Shiyu","orcid":"0000-0002-4444-8718","id":"544cccd3-9005-11ec-87bc-94aef1c5b814","last_name":"Shen"}],"corr_author":"1","date_created":"2025-07-21T07:54:50Z","mathsc":["14H60","19L50"],"publisher":"EMS Press","day":"20","department":[{"_id":"TaHa"}],"acknowledgement":"It is a pleasure to thank Tom Baird for sharing his insights about vanishing of torsion for H.M{1\r\n2/. Furthermore, we would like to thank him for bringing [25] to our attention. We also thank Alexander Kupers for enlightening conversations about the Atiyah–Hirzebruch spectral sequence and for pointing out a reference. We are grateful to Victoria Hoskins and Simon Pepin-Lehalleur for sharing a preprint of their recent paper on a motivic version of topological mirror symmetry and for useful remarks on Section 6. Anne Larsen pointed out that our previous proof Lemma 4.5 was incomplete, we thank her for bringing this to our attention. We are grateful to the anonymous referee for many valuable comments that have improved the paper tremendously. The report we received was one of the most detailed referee report either of us has ever seen. We thank them for their hard work and the resulting contribution to this paper. Michael Groechenig was supported by an NSERC discovery grant and an Alfred P. Sloan\r\nfellowship. Shiyu Shen has received funding from the European Union’s Horizon 2020 research\r\nand innovation program under the Marie Skłodowska-Curie grant agreement No. 101034413.","isi":1,"project":[{"name":"IST-BRIDGE: International postdoctoral program","_id":"fc2ed2f7-9c52-11eb-aca3-c01059dda49c","call_identifier":"H2020","grant_number":"101034413"}],"publication":"Journal of the European Mathematical Society","language":[{"iso":"eng"}],"ddc":["510"],"article_type":"original","publication_status":"epub_ahead","citation":{"short":"M. Groechenig, S. Shen, Journal of the European Mathematical Society (2025).","ieee":"M. Groechenig and S. Shen, “Complex K-theory of moduli spaces of Higgs bundles,” Journal of the European Mathematical Society. EMS Press, 2025.","ista":"Groechenig M, Shen S. 2025. Complex K-theory of moduli spaces of Higgs bundles. Journal of the European Mathematical Society.","apa":"Groechenig, M., & Shen, S. (2025). Complex K-theory of moduli spaces of Higgs bundles. Journal of the European Mathematical Society. EMS Press. https://doi.org/10.4171/jems/1601","mla":"Groechenig, Michael, and Shiyu Shen. “Complex K-Theory of Moduli Spaces of Higgs Bundles.” Journal of the European Mathematical Society, EMS Press, 2025, doi:10.4171/jems/1601.","ama":"Groechenig M, Shen S. Complex K-theory of moduli spaces of Higgs bundles. Journal of the European Mathematical Society. 2025. doi:10.4171/jems/1601","chicago":"Groechenig, Michael, and Shiyu Shen. “Complex K-Theory of Moduli Spaces of Higgs Bundles.” Journal of the European Mathematical Society. EMS Press, 2025. https://doi.org/10.4171/jems/1601."},"main_file_link":[{"url":"https://doi.org/10.4171/JEMS/1601","open_access":"1"}],"arxiv":1,"DOAJ_listed":"1","ec_funded":1,"das_tickbox":"1","year":"2025","abstract":[{"text":"We establish an isomorphism of complex K-theory of the moduli space M of “SL n​ ”-Higgs bundles of degree d and rank n (in the sense of Hausel–Thaddeus) and twisted complex K-theory of the orbifold M of PGL n​ -Higgs bundles of degree e, where (n,d)=(n,e)=1. Along the way, we prove the vanishing of torsion for H ∗ ( M ) and certain twisted complex K-theory groups of M . We also extend Arinkin’s autoduality of compactified Jacobian to a derived equivalence between SL n​ - and PGL n​ -Hitchin systems over the elliptic locus. In the appendix, we develop a formalism of G-sheaves of spectra, generalising equivariant homotopy theory to a relative setting.","lang":"eng"}],"external_id":{"isi":["001608254800001"],"arxiv":["2212.10695"]},"OA_type":"gold","OA_place":"publisher","publication_identifier":{"issn":["1435-9855"],"eissn":["1435-9863"]},"title":"Complex K-theory of moduli spaces of Higgs bundles","oa":1,"_id":"20043","doi":"10.4171/jems/1601","date_published":"2025-03-20T00:00:00Z","status":"public","type":"journal_article","date_updated":"2026-07-23T11:16:00Z"},{"ddc":["000"],"language":[{"iso":"eng"}],"publication_status":"published","publication":"Proceedings of the ACM Symposium on Principles of Distributed Computing","acknowledgement":"This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (MoDynStruct, No. 101019564) and the Austrian Science Fund (FWF) grant DOI 10.55776/I5862,grant DOI 10.55776/I5982, and grant DOI 10.55776/P33775 with\r\nadditional funding from the netidee SCIENCE Stiftung, 2020–2024\r\nand the German Research Foundation (DFG), grant 470029389\r\n(FlexNets).","isi":1,"project":[{"call_identifier":"H2020","grant_number":"101019564","name":"The design and evaluation of modern fully dynamic data structures","_id":"bd9ca328-d553-11ed-ba76-dc4f890cfe62"},{"name":"Static and Dynamic Hierarchical Graph Decompositions","_id":"bda196b2-d553-11ed-ba76-8e8ee6c21103","grant_number":"I05982"},{"_id":"bd9e3a2e-d553-11ed-ba76-8aa684ce17fe","name":"Fast Algorithms for a Reactive Network Layer","grant_number":"P33775"}],"day":"13","publisher":"Association for Computing Machinery","department":[{"_id":"MoHe"}],"conference":{"location":"Huatulco, Mexico","start_date":"2025-06-16","end_date":"2025-06-20","name":"PODC: Symposium on Principles of Distributed Computing"},"date_created":"2025-07-21T08:16:15Z","corr_author":"1","has_accepted_license":"1","author":[{"last_name":"El-Hayek","orcid":"0000-0003-4268-7368","id":"888a098e-fcac-11ee-aff7-d347be57b725","full_name":"El-Hayek, Antoine","first_name":"Antoine"},{"last_name":"Elsässer","full_name":"Elsässer, Robert","first_name":"Robert"},{"last_name":"Schmid","full_name":"Schmid, Stefan","first_name":"Stefan"}],"quality_controlled":"1","fulldoi":"https://doi.org/10.1145/3732772.3733505","month":"06","article_processing_charge":"Yes (via OA deal)","oa_version":"Published Version","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"22281"}]},"type":"conference","date_updated":"2026-07-24T12:48:28Z","_id":"20051","date_published":"2025-06-13T00:00:00Z","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"doi":"10.1145/3732772.3733505","title":"An almost tight lower bound for plurality consensus with undecided state dynamics in the population protocol model","publication_identifier":{"isbn":[" 9798400718854"]},"file_date_updated":"2025-08-04T09:10:55Z","oa":1,"OA_type":"hybrid","OA_place":"publisher","abstract":[{"text":"We revisit the majority problem in the population protocol communication model, as first studied by Angluin et al. (Distributed Computing 2008). We consider a more general version of this problem known as plurality consensus, which has already been studied intensively in the literature. In this problem, each node in a system of n nodes, has initially one of k different opinions, and they need to agree on the (relative) majority opinion. In particular, we consider the important and intensively studied model of Undecided State Dynamics.\r\nOur main contribution is an almost tight lower bound on the stabilization time: we prove that there exists an initial configuration, even with bias \\Delta = \\omega(\\sqrt{n\\log n}), where stabilization requires \\Omega(kn\\log \\frac {\\sqrt n} {k \\log n}) interactions, or equivalently, \\Omega(k\\log \\frac {\\sqrt n} {k \\log n}) parallel time for any k = o\\left(\\frac {\\sqrt n}{\\log n}\\right). This bound is tight for any k \\le n^{\\frac 1 2 - \\epsilon}, where \\epsilon >0 can be any small constant, as Amir et al.~(PODC'23) gave a O(k\\log n) parallel time upper bound for k = O\\left(\\frac {\\sqrt n} {\\log ^2 n}\\right).","lang":"eng"}],"external_id":{"isi":["001525534800066"],"arxiv":["2505.02765"]},"year":"2025","ec_funded":1,"file":[{"creator":"dernst","relation":"main_file","content_type":"application/pdf","file_size":2200347,"file_name":"2025_PODC_ElHayek.pdf","file_id":"20115","checksum":"52976d226f3f691aa519d71c1c718fa5","access_level":"open_access","date_created":"2025-08-04T09:10:55Z","date_updated":"2025-08-04T09:10:55Z","success":1}],"arxiv":1,"citation":{"mla":"El-Hayek, Antoine, et al. “An Almost Tight Lower Bound for Plurality Consensus with Undecided State Dynamics in the Population Protocol Model.” Proceedings of the ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2025, doi:10.1145/3732772.3733505.","ama":"El-Hayek A, Elsässer R, Schmid S. An almost tight lower bound for plurality consensus with undecided state dynamics in the population protocol model. In: Proceedings of the ACM Symposium on Principles of Distributed Computing. Association for Computing Machinery; 2025. doi:10.1145/3732772.3733505","chicago":"El-Hayek, Antoine, Robert Elsässer, and Stefan Schmid. “An Almost Tight Lower Bound for Plurality Consensus with Undecided State Dynamics in the Population Protocol Model.” In Proceedings of the ACM Symposium on Principles of Distributed Computing. Association for Computing Machinery, 2025. https://doi.org/10.1145/3732772.3733505.","short":"A. El-Hayek, R. Elsässer, S. Schmid, in:, Proceedings of the ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2025.","ista":"El-Hayek A, Elsässer R, Schmid S. 2025. An almost tight lower bound for plurality consensus with undecided state dynamics in the population protocol model. Proceedings of the ACM Symposium on Principles of Distributed Computing. PODC: Symposium on Principles of Distributed Computing.","ieee":"A. El-Hayek, R. Elsässer, and S. Schmid, “An almost tight lower bound for plurality consensus with undecided state dynamics in the population protocol model,” in Proceedings of the ACM Symposium on Principles of Distributed Computing, Huatulco, Mexico, 2025.","apa":"El-Hayek, A., Elsässer, R., & Schmid, S. (2025). An almost tight lower bound for plurality consensus with undecided state dynamics in the population protocol model. In Proceedings of the ACM Symposium on Principles of Distributed Computing. Huatulco, Mexico: Association for Computing Machinery. https://doi.org/10.1145/3732772.3733505"}},{"page":"750-784","date_created":"2025-07-10T13:08:57Z","corr_author":"1","author":[{"orcid":"0000-0003-4268-7368","id":"888a098e-fcac-11ee-aff7-d347be57b725","last_name":"El-Hayek","full_name":"El-Hayek, Antoine","first_name":"Antoine"},{"last_name":"Henzinger","orcid":"0000-0002-5008-6530","id":"540c9bbd-f2de-11ec-812d-d04a5be85630","full_name":"Henzinger, Monika H","first_name":"Monika H"},{"last_name":"Li","full_name":"Li, Jason","first_name":"Jason"}],"fulldoi":"https://doi.org/10.1137/1.9781611978322.22","month":"01","quality_controlled":"1","article_processing_charge":"No","oa_version":"Preprint","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","language":[{"iso":"eng"}],"publication_status":"published","publication":"Proceedings of the 2025 Annual ACM-SIAM Symposium on Discrete Algorithms","acknowledgement":"This project has received funding from the European Research Council (ERC) under the European Union’sHorizon 2020 research and innovation programme (MoDynStruct, No. 101019564) and the Austrian Science Fund(FWF) grant DOI 10.55776/Z422, grant DOI 10.55776/I5982, and grant DOI 10.55776/P33775 with additional funding from the netidee SCIENCE Stiftung, 2020–2024.","project":[{"grant_number":"101019564","call_identifier":"H2020","_id":"bd9ca328-d553-11ed-ba76-dc4f890cfe62","name":"The design and evaluation of modern fully dynamic data structures"},{"grant_number":"Z00422","name":"Efficient algorithms","_id":"34def286-11ca-11ed-8bc3-da5948e1613c"},{"_id":"bda196b2-d553-11ed-ba76-8e8ee6c21103","name":"Static and Dynamic Hierarchical Graph Decompositions","grant_number":"I05982"},{"grant_number":"P33775","_id":"bd9e3a2e-d553-11ed-ba76-8aa684ce17fe","name":"Fast Algorithms for a Reactive Network Layer"}],"publisher":"Society for Industrial and Applied Mathematics","day":"07","conference":{"name":"SODA: Symposium on Discrete Algorithms","start_date":"2025-01-12","location":"New Orleans, LA, United States","end_date":"2025-01-15"},"department":[{"_id":"MoHe"}],"year":"2025","ec_funded":1,"arxiv":1,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2412.15069"}],"citation":{"ama":"El-Hayek A, Henzinger M, Li J. Fully dynamic approximate minimum cut in subpolynomial time per operation. In: Proceedings of the 2025 Annual ACM-SIAM Symposium on Discrete Algorithms. Society for Industrial and Applied Mathematics; 2025:750-784. doi:10.1137/1.9781611978322.22","mla":"El-Hayek, Antoine, et al. “Fully Dynamic Approximate Minimum Cut in Subpolynomial Time per Operation.” Proceedings of the 2025 Annual ACM-SIAM Symposium on Discrete Algorithms, Society for Industrial and Applied Mathematics, 2025, pp. 750–84, doi:10.1137/1.9781611978322.22.","chicago":"El-Hayek, Antoine, Monika Henzinger, and Jason Li. “Fully Dynamic Approximate Minimum Cut in Subpolynomial Time per Operation.” In Proceedings of the 2025 Annual ACM-SIAM Symposium on Discrete Algorithms, 750–84. Society for Industrial and Applied Mathematics, 2025. https://doi.org/10.1137/1.9781611978322.22.","short":"A. El-Hayek, M. Henzinger, J. Li, in:, Proceedings of the 2025 Annual ACM-SIAM Symposium on Discrete Algorithms, Society for Industrial and Applied Mathematics, 2025, pp. 750–784.","apa":"El-Hayek, A., Henzinger, M., & Li, J. (2025). Fully dynamic approximate minimum cut in subpolynomial time per operation. In Proceedings of the 2025 Annual ACM-SIAM Symposium on Discrete Algorithms (pp. 750–784). New Orleans, LA, United States: Society for Industrial and Applied Mathematics. https://doi.org/10.1137/1.9781611978322.22","ieee":"A. El-Hayek, M. Henzinger, and J. Li, “Fully dynamic approximate minimum cut in subpolynomial time per operation,” in Proceedings of the 2025 Annual ACM-SIAM Symposium on Discrete Algorithms, New Orleans, LA, United States, 2025, pp. 750–784.","ista":"El-Hayek A, Henzinger M, Li J. 2025. Fully dynamic approximate minimum cut in subpolynomial time per operation. Proceedings of the 2025 Annual ACM-SIAM Symposium on Discrete Algorithms. SODA: Symposium on Discrete Algorithms, 750–784."},"type":"conference","status":"public","related_material":{"record":[{"status":"public","id":"22281","relation":"dissertation_contains"}]},"date_updated":"2026-07-24T12:48:28Z","_id":"19982","date_published":"2025-01-07T00:00:00Z","doi":"10.1137/1.9781611978322.22","title":"Fully dynamic approximate minimum cut in subpolynomial time per operation","publication_identifier":{"eisbn":["9781611978322"]},"oa":1,"OA_place":"repository","OA_type":"green","abstract":[{"lang":"eng","text":"Dynamically maintaining the minimum cut in a graph G under edge insertions and deletion is a fundamental problem in dynamic graph algorithms for which no conditional lower bound on the time per operation exists. In an n-node graph the best known (1 + o (1))-approximate algorithm takes update time [14]. If the minimum cut is guaranteed to be (log n )o (1), a deterministic exact algorithm with n o (1) update time exists [8].\r\nWe present the first fully dynamic algorithm for (1 + o (1))-approximate minimum cut with n o(1) update time. Our main technical contribution is to show that it suffices to consider small-volume cuts in suitably contracted graphs."}],"external_id":{"arxiv":["2412.15069"]}},{"file":[{"success":1,"access_level":"open_access","date_created":"2026-07-27T08:19:34Z","date_updated":"2026-07-27T08:19:34Z","file_id":"22411","file_name":"2026_JournalGlaciology_He.pdf","checksum":"6b50f39880c70b2e58baaa7713848ab5","file_size":6023889,"relation":"main_file","content_type":"application/pdf","creator":"dernst"}],"DOAJ_listed":"1","intvolume":" 71","das_tickbox":"1","citation":{"chicago":"He, Zhen, Matthew Westoby, SHAOTING REN, Chuanxi Zhao, Yifei He, Tianzhao Zhang, and Wei Yang. “Quantifying the Seasonal Dynamics of a Transitional Ice Cliff-Pond System on a Debris-Covered Glacier.” Journal of Glaciology. Cambridge University Press, 2025. https://doi.org/10.1017/jog.2025.10104.","ama":"He Z, Westoby M, REN S, et al. Quantifying the seasonal dynamics of a transitional ice cliff-pond system on a debris-covered glacier. Journal of Glaciology. 2025;71. doi:10.1017/jog.2025.10104","mla":"He, Zhen, et al. “Quantifying the Seasonal Dynamics of a Transitional Ice Cliff-Pond System on a Debris-Covered Glacier.” Journal of Glaciology, vol. 71, e129, Cambridge University Press, 2025, doi:10.1017/jog.2025.10104.","apa":"He, Z., Westoby, M., REN, S., Zhao, C., He, Y., Zhang, T., & Yang, W. (2025). Quantifying the seasonal dynamics of a transitional ice cliff-pond system on a debris-covered glacier. Journal of Glaciology. Cambridge University Press. https://doi.org/10.1017/jog.2025.10104","ieee":"Z. He et al., “Quantifying the seasonal dynamics of a transitional ice cliff-pond system on a debris-covered glacier,” Journal of Glaciology, vol. 71. Cambridge University Press, 2025.","ista":"He Z, Westoby M, REN S, Zhao C, He Y, Zhang T, Yang W. 2025. Quantifying the seasonal dynamics of a transitional ice cliff-pond system on a debris-covered glacier. Journal of Glaciology. 71, e129.","short":"Z. He, M. Westoby, S. REN, C. Zhao, Y. He, T. Zhang, W. Yang, Journal of Glaciology 71 (2025)."},"PlanS_conform":"1","researchdata_availability":"yes","year":"2025","OA_type":"gold","OA_place":"publisher","title":"Quantifying the seasonal dynamics of a transitional ice cliff-pond system on a debris-covered glacier","file_date_updated":"2026-07-27T08:19:34Z","publication_identifier":{"eissn":["1727-5652"],"issn":["0022-1430"]},"oa":1,"abstract":[{"lang":"eng","text":"Ice cliffs and supraglacial ponds are key drivers of mass loss on debris-covered glaciers. However, the relationship between melt ponds and adjacent ice cliffs has not been fully explored. We investigated the seasonal drainage patterns of a melt pond on the debris-covered Zhuxi Glacier in southeast Tibet and estimated the mass loss of its adjacent ice cliff during 2023-2024. Using hourly time-lapse photogrammetry we built a series of high-resolution point clouds to quantify the evolution of the ice cliff-pond system. Our findings indicate that subaerial melting and undercutting were the primary mechanisms of ice cliff mass loss during summer. In winter when the pond water level dropped, ice cliff calving became the dominant mode of ice loss. As the water level rose in spring, calving and subaerial melting occurred simultaneously and ice loss from calving accounted for approximately 19.5 % of total ice loss from February to July 2024. Our results reveal the transitional state of this ice cliff-pond system, exhibiting characteristics of both melt hotspots and lake-terminating calving fronts, and highlight the interplay between seasonal drainage-refill pond and differing modes of ice loss on adjacent ice cliff. Future research should focus on additional high-resolution monitoring of similar systems and incorporation of ice cliff-pond dynamics in glacier-scale numerical models. "}],"_id":"20669","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"date_published":"2025-11-10T00:00:00Z","doi":"10.1017/jog.2025.10104","status":"public","type":"journal_article","date_updated":"2026-07-27T08:21:14Z","volume":71,"article_number":"e129","article_processing_charge":"Yes","oa_version":"Published Version","supplementarymaterial":"no","fulldoi":"https://doi.org/10.1017/jog.2025.10104","quality_controlled":"1","month":"11","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2025-11-23T23:01:40Z","has_accepted_license":"1","author":[{"full_name":"He, Zhen","first_name":"Zhen","last_name":"He"},{"first_name":"Matthew","full_name":"Westoby, Matthew","last_name":"Westoby"},{"first_name":"Shaoting","full_name":"Ren, Shaoting","last_name":"Ren","id":"2066b6dd-2d54-11ef-8f8c-c94731161817"},{"full_name":"Zhao, Chuanxi","first_name":"Chuanxi","last_name":"Zhao"},{"last_name":"He","first_name":"Yifei","full_name":"He, Yifei"},{"last_name":"Zhang","full_name":"Zhang, Tianzhao","first_name":"Tianzhao"},{"full_name":"Yang, Wei","first_name":"Wei","last_name":"Yang"}],"acknowledgement":"This study was supported by the National Natural Science Foundation of China (grant nos. 42271138, 42201144), Lhasa Science and Technology Plan Project (LSKJ202406), the National Key R&D Program of China (grant nos. 2024YFF0808601), and the Science and Technology Plan Projects of Tibet Autonomous Region (Grants XZ202501ZY0081 and XZ202401ZY0003). ZH additionally acknowledges mobility funding provided by China Scholarship Council (CSC), supporting an extended research stay at the University of Plymouth, where much of this research was completed.","scopus_import":"1","publisher":"Cambridge University Press","day":"10","department":[{"_id":"FrPe"}],"language":[{"iso":"eng"}],"ddc":["550"],"article_type":"original","publication_status":"published","dataavailabilitystatement":"The Python scripts to processing of the time-lapse photos to point clouds, as well as ICP registration, are available on Zenodo (https://doi.org/10.5281/zenodo.16272541).","publication":"Journal of Glaciology"},{"publication":"31st International Conference on Tools and Algorithms for the Construction and Analysis of Systems","publication_status":"published","language":[{"iso":"eng"}],"ddc":["000"],"day":"01","publisher":"Springer Nature","department":[{"_id":"ToHe"}],"scopus_import":"1","project":[{"name":"Vigilant Algorithmic Monitoring of Software","_id":"62781420-2b32-11ec-9570-8d9b63373d4d","call_identifier":"H2020","grant_number":"101020093"}],"acknowledgement":"This work was supported in part by the ERC-2020-AdG 101020093.","author":[{"first_name":"Marek","full_name":"Chalupa, Marek","last_name":"Chalupa","id":"87e34708-d6c6-11ec-9f5b-9391e7be2463"},{"full_name":"Henzinger, Thomas A","first_name":"Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger"},{"id":"b26baa86-3308-11ec-87b0-8990f34baa85","last_name":"Mazzocchi","first_name":"Nicolas Adrien","full_name":"Mazzocchi, Nicolas Adrien"},{"first_name":"Naci E","full_name":"Sarac, Naci E","id":"8C6B42F8-C8E6-11E9-A03A-F2DCE5697425","last_name":"Sarac"}],"has_accepted_license":"1","page":"303-312","date_created":"2025-05-25T22:17:07Z","corr_author":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"05","fulldoi":"https://doi.org/10.1007/978-3-031-90643-5_16","quality_controlled":"1","oa_version":"Published Version","article_processing_charge":"No","volume":15696,"date_updated":"2026-07-27T12:48:18Z","status":"public","related_material":{"record":[{"relation":"dissertation_contains","id":"20147","status":"public"}]},"type":"conference","date_published":"2025-05-01T00:00:00Z","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"doi":"10.1007/978-3-031-90643-5_16","_id":"19741","external_id":{"arxiv":["2501.16088"]},"abstract":[{"text":"Quantitative automata model beyond-boolean aspects of systems: every execution is mapped to a real number by incorporating weighted transitions and value functions that generalize acceptance conditions of boolean w-automata. Despite the theoretical advances in systems analysis through quantitative automata, the first comprehensive software tool for quantitative automata (Quantitative Automata Kit, or QuAK) was developed only recently. QuAK implements algorithms for solving standard decision problems, e.g., emptiness and universality, as well as constructions for safety and liveness of quantitative automata. We present the architecture of QuAK, which reflects that all of these problems reduce to either checking inclusion between two quantitative automata or computing the highest value achievable by an automaton—its so-called top value. We improve QuAK by extending these two algorithms with an option to return, alongside their results, an ultimately periodic word witnessing the algorithm’s output, as well as implementing a new safety-liveness decomposition algorithm that can handle nondeterministic automata, making QuAK more informative and capable.","lang":"eng"}],"oa":1,"title":"Automating the analysis of quantitative automata with QuAK","publication_identifier":{"issn":["0302-9743"],"eissn":["1611-3349"],"isbn":["9783031906428"]},"file_date_updated":"2025-06-02T08:13:11Z","OA_place":"publisher","OA_type":"hybrid","year":"2025","arxiv":1,"citation":{"mla":"Chalupa, Marek, et al. “Automating the Analysis of Quantitative Automata with QuAK.” 31st International Conference on Tools and Algorithms for the Construction and Analysis of Systems, vol. 15696, Springer Nature, 2025, pp. 303–12, doi:10.1007/978-3-031-90643-5_16.","ama":"Chalupa M, Henzinger TA, Mazzocchi NA, Sarac NE. Automating the analysis of quantitative automata with QuAK. In: 31st International Conference on Tools and Algorithms for the Construction and Analysis of Systems. Vol 15696. Springer Nature; 2025:303-312. doi:10.1007/978-3-031-90643-5_16","chicago":"Chalupa, Marek, Thomas A Henzinger, Nicolas Adrien Mazzocchi, and Naci E Sarac. “Automating the Analysis of Quantitative Automata with QuAK.” In 31st International Conference on Tools and Algorithms for the Construction and Analysis of Systems, 15696:303–12. Springer Nature, 2025. https://doi.org/10.1007/978-3-031-90643-5_16.","short":"M. Chalupa, T.A. Henzinger, N.A. Mazzocchi, N.E. Sarac, in:, 31st International Conference on Tools and Algorithms for the Construction and Analysis of Systems, Springer Nature, 2025, pp. 303–312.","apa":"Chalupa, M., Henzinger, T. A., Mazzocchi, N. A., & Sarac, N. E. (2025). Automating the analysis of quantitative automata with QuAK. In 31st International Conference on Tools and Algorithms for the Construction and Analysis of Systems (Vol. 15696, pp. 303–312). Springer Nature. https://doi.org/10.1007/978-3-031-90643-5_16","ista":"Chalupa M, Henzinger TA, Mazzocchi NA, Sarac NE. 2025. Automating the analysis of quantitative automata with QuAK. 31st International Conference on Tools and Algorithms for the Construction and Analysis of Systems. , LNCS, vol. 15696, 303–312.","ieee":"M. Chalupa, T. A. Henzinger, N. A. Mazzocchi, and N. E. Sarac, “Automating the analysis of quantitative automata with QuAK,” in 31st International Conference on Tools and Algorithms for the Construction and Analysis of Systems, 2025, vol. 15696, pp. 303–312."},"ec_funded":1,"intvolume":" 15696","file":[{"file_name":"2025_TACAS_ChalupaMarek.pdf","file_id":"19768","checksum":"a27fa245be8d83421e9127b48a09c8af","date_created":"2025-06-02T08:13:11Z","access_level":"open_access","date_updated":"2025-06-02T08:13:11Z","success":1,"creator":"dernst","relation":"main_file","content_type":"application/pdf","file_size":420669}],"alternative_title":["LNCS"]},{"publication":"arXiv","language":[{"iso":"eng"}],"publication_status":"draft","department":[{"_id":"GradSch"},{"_id":"DaAl"}],"day":"02","acknowledgement":"This research was supported by the Scientific Service Units (SSU) of IST Austria through resources\r\nprovided by Scientific Computing (SciComp). EI was supported in part by the FWF DK VGSCO,\r\ngrant agreement number W1260-N35. AJ was supported in part by ERC Proof-of-Concept Grant\r\nFastML, grant agreement 101158077.","project":[{"_id":"8e35c14b-16d5-11f0-9cad-a3fc35339161","name":"FastML: Efficient and Cost-Effective Distributed Machine Learning","grant_number":"101158077"},{"grant_number":"W1260-N35","_id":"9B9290DE-BA93-11EA-9121-9846C619BF3A","name":"Vienna Graduate School on Computational Optimization"}],"author":[{"orcid":"0000-0002-7778-3221","last_name":"Iofinova","id":"f9a17499-f6e0-11ea-865d-fdf9a3f77117","first_name":"Eugenia B","full_name":"Iofinova, Eugenia B"},{"last_name":"Jovanovic","first_name":"Andrej","full_name":"Jovanovic, Andrej"},{"id":"4A899BFC-F248-11E8-B48F-1D18A9856A87","last_name":"Alistarh","orcid":"0000-0003-3650-940X","full_name":"Alistarh, Dan-Adrian","first_name":"Dan-Adrian"}],"corr_author":"1","date_created":"2026-05-11T08:55:23Z","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","article_processing_charge":"No","oa_version":"Preprint","fulldoi":"https://doi.org/10.48550/arXiv.2502.06560","month":"06","_id":"21858","date_published":"2025-06-02T00:00:00Z","doi":"10.48550/arXiv.2502.06560","type":"preprint","related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"21854"}]},"status":"public","date_updated":"2026-07-27T12:50:03Z","abstract":[{"text":"The recent surge in high-quality open-source Generative AI text models (colloquially: LLMs), as well as efficient finetuning techniques, have opened the possibility of creating high-quality personalized models that generate text attuned to a specific individual’s needs and are capable of credibly imitating their writing style by refining an open-source model with that person’s own data. The technology to create such models is accessible to private individuals, and training and running such models can be done cheaply on consumer-grade hardware. While these advancements are a huge gain for usability and privacy, this position paper argues that the practical feasibility of impersonating specific individuals also introduces novel safety risks. For instance, this technology enables the creation of phishing emails\r\nor fraudulent social media accounts, based on small amounts of publicly available text, or by the individuals themselves to escape AI text detection. We further argue that these risks are complementary to—and distinct from—the much-discussed risks of other impersonation attacks such as image, voice, or video deepfakes, and are not adequately addressed by the larger research community, or the current generation of open- and closed-source models.","lang":"eng"}],"external_id":{"arxiv":["2502.06560"]},"OA_place":"repository","OA_type":"green","title":"Position: It's time to act on the risk of efficient personalized text generation","oa":1,"year":"2025","citation":{"short":"E.B. Iofinova, A. Jovanovic, D.-A. Alistarh, ArXiv (n.d.).","apa":"Iofinova, E. B., Jovanovic, A., & Alistarh, D.-A. (n.d.). Position: It’s time to act on the risk of efficient personalized text generation. arXiv. https://doi.org/10.48550/arXiv.2502.06560","ieee":"E. B. Iofinova, A. Jovanovic, and D.-A. Alistarh, “Position: It’s time to act on the risk of efficient personalized text generation,” arXiv. .","ista":"Iofinova EB, Jovanovic A, Alistarh D-A. Position: It’s time to act on the risk of efficient personalized text generation. arXiv, 10.48550/arXiv.2502.06560.","ama":"Iofinova EB, Jovanovic A, Alistarh D-A. Position: It’s time to act on the risk of efficient personalized text generation. arXiv. doi:10.48550/arXiv.2502.06560","mla":"Iofinova, Eugenia B., et al. “Position: It’s Time to Act on the Risk of Efficient Personalized Text Generation.” ArXiv, doi:10.48550/arXiv.2502.06560.","chicago":"Iofinova, Eugenia B, Andrej Jovanovic, and Dan-Adrian Alistarh. “Position: It’s Time to Act on the Risk of Efficient Personalized Text Generation.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2502.06560."},"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2502.06560","open_access":"1"}],"arxiv":1},{"publication_status":"published","article_type":"original","language":[{"iso":"eng"}],"publication":"SIAM Journal on Optimization","department":[{"_id":"VlKo"},{"_id":"GradSch"}],"day":"01","publisher":"Society for Industrial and Applied Mathematics","date_created":"2026-02-05T13:33:05Z","page":"1630-1654","author":[{"last_name":"Kolmogorov","id":"3D50B0BA-F248-11E8-B48F-1D18A9856A87","full_name":"Kolmogorov, Vladimir","first_name":"Vladimir"},{"full_name":"Naldi, Simone","first_name":"Simone","last_name":"Naldi"},{"last_name":"Zapata","id":"00223538-AF8F-11E9-A4C7-F729E6697425","first_name":"Jeferson","full_name":"Zapata, Jeferson"}],"oa_version":"Preprint","article_processing_charge":"No","month":"09","fulldoi":"https://doi.org/10.1137/24m1664691","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","doi":"10.1137/24m1664691","date_published":"2025-09-01T00:00:00Z","_id":"21144","date_updated":"2026-07-27T14:30:41Z","type":"journal_article","status":"public","related_material":{"record":[{"relation":"dissertation_contains","id":"21957","status":"public"}]},"volume":35,"issue":"3","OA_type":"green","OA_place":"repository","oa":1,"title":"Certifying solutions of degenerate semidefinite programs","publication_identifier":{"eissn":["1095-7189"],"issn":["1052-6234"]},"external_id":{"arxiv":["2405.13625"]},"abstract":[{"text":"This paper deals with the algorithmic aspects of solving feasibility problems of semidefinite programming (SDP), aka linear matrix inequalities (LMIs). Since in some SDP instances all feasible solutions have irrational entries, numerical solvers that work with rational numbers can only find an approximate solution. We study the following question: Is it possible to certify feasibility of a given SDP using an approximate solution that is sufficiently close to some exact solution? Existing approaches make the assumption that there exist rational feasible solutions (and use techniques such as rounding and lattice reduction algorithms). We propose an alternative approach that does not need this assumption. More specifically, we show how to construct a system of polynomial equations whose set of real solutions is guaranteed to have an isolated correct solution (assuming that the target exact solution is maximum-rank). This allows, in particular, for us to use algorithms from real algebraic geometry for solving systems of polynomial equations, yielding a hybrid (or symbolic-numerical) method for SDPs. We experimentally compare it with a pure symbolic method in [D. Henrion, S. Naldi, and M. Safey El Din, SIAM J. Optim., 26 (2016), pp. 2512–2539]; the hybrid method was able to certify feasibility of many SDP instances on which the aforementioned paper failed. Our approach may have further applications, such as refining an approximate solution using methods of numerical algebraic geometry for systems of polynomial equations.","lang":"eng"}],"year":"2025","intvolume":" 35","citation":{"short":"V. Kolmogorov, S. Naldi, J. Zapata, SIAM Journal on Optimization 35 (2025) 1630–1654.","apa":"Kolmogorov, V., Naldi, S., & Zapata, J. (2025). Certifying solutions of degenerate semidefinite programs. SIAM Journal on Optimization. Society for Industrial and Applied Mathematics. https://doi.org/10.1137/24m1664691","ista":"Kolmogorov V, Naldi S, Zapata J. 2025. Certifying solutions of degenerate semidefinite programs. SIAM Journal on Optimization. 35(3), 1630–1654.","ieee":"V. Kolmogorov, S. Naldi, and J. Zapata, “Certifying solutions of degenerate semidefinite programs,” SIAM Journal on Optimization, vol. 35, no. 3. Society for Industrial and Applied Mathematics, pp. 1630–1654, 2025.","ama":"Kolmogorov V, Naldi S, Zapata J. Certifying solutions of degenerate semidefinite programs. SIAM Journal on Optimization. 2025;35(3):1630-1654. doi:10.1137/24m1664691","mla":"Kolmogorov, Vladimir, et al. “Certifying Solutions of Degenerate Semidefinite Programs.” SIAM Journal on Optimization, vol. 35, no. 3, Society for Industrial and Applied Mathematics, 2025, pp. 1630–54, doi:10.1137/24m1664691.","chicago":"Kolmogorov, Vladimir, Simone Naldi, and Jeferson Zapata. “Certifying Solutions of Degenerate Semidefinite Programs.” SIAM Journal on Optimization. Society for Industrial and Applied Mathematics, 2025. https://doi.org/10.1137/24m1664691."},"arxiv":1,"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2405.13625","open_access":"1"}]},{"acknowledgement":"We thank Gregor Krzmanc, German Magai, Vital Fernandez for insightful discussions in the early stages of the project. HY was supported by the Research Council of Finland Flagship programme: Finnish Center for Artificial Intelligence FCAI. HY wishes to acknowledge CSC - IT Center for Science, Finland, for computational resources. GA was supported by the DFF Sapere Aude Starting Grant “GADL”. SH was supported by a research grant (42062) from VILLUM FONDEN and partly funded by the Novo Nordisk Foundation through the Center for Basic Research in Life Science (NNF20OC0062606). SH received funding from the European Research Council (ERC) under the European Union’s Horizon Programme (grant agreement 101125003). MF is supported by the MSCA IST-Bridge fellowship which has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement No 101034413.","project":[{"name":"IST-BRIDGE: International postdoctoral program","_id":"fc2ed2f7-9c52-11eb-aca3-c01059dda49c","call_identifier":"H2020","grant_number":"101034413"}],"conference":{"start_date":"2025-12-02","location":"San Diego, CA, United States","end_date":"2025-12-07","name":"NeurIPS: Neural Information Processing Systems"},"department":[{"_id":"FrLo"}],"day":"15","publisher":"Neural Information Processing Systems Foundation","language":[{"iso":"eng"}],"ddc":["000"],"publication_status":"published","publication":"39th Annual Conference on Neural Information Processing Systems","month":"12","quality_controlled":"1","article_processing_charge":"No","oa_version":"Published Version","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2026-01-29T14:31:52Z","corr_author":"1","has_accepted_license":"1","author":[{"last_name":"Yu","full_name":"Yu, Hanlin","first_name":"Hanlin"},{"last_name":"Inal","first_name":"Befrin","full_name":"Inal, Befrin"},{"last_name":"Arvanitidis","full_name":"Arvanitidis, Georgios","first_name":"Georgios"},{"full_name":"Hauberg, Soren","first_name":"Soren","last_name":"Hauberg"},{"id":"26cfd52f-2483-11ee-8040-88983bcc06d4","orcid":"0000-0002-4850-0683","last_name":"Locatello","full_name":"Locatello, Francesco","first_name":"Francesco"},{"id":"1c1593eb-393f-11ef-bb8e-ab4f1e979650","last_name":"Fumero","first_name":"Marco","full_name":"Fumero, Marco"}],"publication_identifier":{"issn":["1049-5258"]},"title":"Connecting neural models latent geometries with relative geodesic representations","file_date_updated":"2026-01-29T14:31:42Z","oa":1,"OA_place":"publisher","OA_type":"gold","abstract":[{"lang":"eng","text":"Neural models learn representations of high-dimensional data on low-dimensional manifolds. Multiple factors, including stochasticities in the training process, model architectures, and additional inductive biases, may induce different representations, even when learning the same task on the same data. However, it has recently been shown that when a latent structure is shared between distinct latent spaces, relative distances between representations can be preserved, up to distortions. Building on this idea, we demonstrate that exploiting the differential-geometric structure of latent spaces of neural models, it is possible to capture precisely the transformations between representational spaces trained on similar data distributions. Specifically, we assume that distinct neural models parametrize approximately the same underlying manifold, and introduce a representation based on the pullback metric that captures the intrinsic structure of the latent space, while scaling efficiently to large models. We validate experimentally our method on model stitching and retrieval tasks, covering autoencoders and vision foundation discriminative models, across diverse architectures, datasets, pretraining schemes and modalities. Code is available at the following link."}],"external_id":{"arxiv":["2506.01599"]},"type":"conference","status":"public","date_updated":"2026-07-28T07:19:01Z","_id":"21074","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"date_published":"2025-12-15T00:00:00Z","volume":38,"intvolume":" 38","ec_funded":1,"das_tickbox":"1","alternative_title":["Advances in Neural Information Processing Systems"],"file":[{"creator":"flocatel","content_type":"application/pdf","relation":"main_file","file_size":7749349,"checksum":"b1a645418025f46394764cd16d0cb089","file_id":"21075","file_name":"2506.01599v2.pdf","date_updated":"2026-01-29T14:31:42Z","date_created":"2026-01-29T14:31:42Z","access_level":"open_access","success":1}],"arxiv":1,"citation":{"chicago":"Yu, Hanlin, Befrin Inal, Georgios Arvanitidis, Soren Hauberg, Francesco Locatello, and Marco Fumero. “Connecting Neural Models Latent Geometries with Relative Geodesic Representations.” In 39th Annual Conference on Neural Information Processing Systems, Vol. 38. Neural Information Processing Systems Foundation, 2025.","ama":"Yu H, Inal B, Arvanitidis G, Hauberg S, Locatello F, Fumero M. Connecting neural models latent geometries with relative geodesic representations. In: 39th Annual Conference on Neural Information Processing Systems. Vol 38. Neural Information Processing Systems Foundation; 2025.","mla":"Yu, Hanlin, et al. “Connecting Neural Models Latent Geometries with Relative Geodesic Representations.” 39th Annual Conference on Neural Information Processing Systems, vol. 38, Neural Information Processing Systems Foundation, 2025.","ista":"Yu H, Inal B, Arvanitidis G, Hauberg S, Locatello F, Fumero M. 2025. Connecting neural models latent geometries with relative geodesic representations. 39th Annual Conference on Neural Information Processing Systems. NeurIPS: Neural Information Processing Systems, Advances in Neural Information Processing Systems, vol. 38.","ieee":"H. Yu, B. Inal, G. Arvanitidis, S. Hauberg, F. Locatello, and M. Fumero, “Connecting neural models latent geometries with relative geodesic representations,” in 39th Annual Conference on Neural Information Processing Systems, San Diego, CA, United States, 2025, vol. 38.","apa":"Yu, H., Inal, B., Arvanitidis, G., Hauberg, S., Locatello, F., & Fumero, M. (2025). Connecting neural models latent geometries with relative geodesic representations. In 39th Annual Conference on Neural Information Processing Systems (Vol. 38). San Diego, CA, United States: Neural Information Processing Systems Foundation.","short":"H. Yu, B. Inal, G. Arvanitidis, S. Hauberg, F. Locatello, M. Fumero, in:, 39th Annual Conference on Neural Information Processing Systems, Neural Information Processing Systems Foundation, 2025."},"year":"2025"},{"oa_version":"Preprint","article_processing_charge":"No","month":"12","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2026-01-29T14:29:23Z","author":[{"last_name":"Basile","full_name":"Basile, Lorenzo","first_name":"Lorenzo"},{"full_name":"Maiorca, Valentino","first_name":"Valentino","last_name":"Maiorca"},{"full_name":"Doimo, Diego","first_name":"Diego","last_name":"Doimo"},{"full_name":"Locatello, Francesco","first_name":"Francesco","last_name":"Locatello","id":"26cfd52f-2483-11ee-8040-88983bcc06d4","orcid":"0000-0002-4850-0683"},{"full_name":"Cazzaniga, Alberto","first_name":"Alberto","last_name":"Cazzaniga"}],"has_accepted_license":"1","acknowledgement":"The authors acknowledge the Area Science Park supercomputing platform ORFEO made available for conducting the research reported in this paper, and the technical support of the Laboratory of Data Engineering staff. LB, DD and AC were supported by the project “Supporto alla diagnosi di malattie rare tramite l’intelligenza artificiale\" CUP: F53C22001770002 and “Valutazione automatica delle immagini diagnostiche tramite l’intelligenza artificiale\", CUP: F53C22001780002. LB was supported by the European Union – NextGenerationEU within the project PNRR “Finanziamento di progetti presentati da giovani ricercatori\" - Mission 4 Component 2 Investment 1.2, CUP: J93C25000440001. AC was supported by the European Union – NextGenerationEU within the project PNRR “PRP@CERIC\" IR0000028 - Mission 4 Component 2 Investment 3.1 Action 3.1.1. ","day":"15","publisher":"Neural Information Processing Systems Foundation","conference":{"name":"NeurIPS: Neural Information Processing Systems","location":"San Diego, CA, United States","start_date":"2025-12-02","end_date":"2025-12-07"},"department":[{"_id":"FrLo"}],"publication_status":"published","ddc":["000"],"language":[{"iso":"eng"}],"publication":"39th Annual Conference on Neural Information Processing Systems","file":[{"success":1,"date_created":"2026-01-29T14:29:14Z","access_level":"open_access","date_updated":"2026-01-29T14:29:14Z","file_name":"2510.21518v2.pdf","file_id":"21073","checksum":"85be3f98663e2595cf37001852b477cb","file_size":4271547,"relation":"main_file","content_type":"application/pdf","creator":"flocatel"}],"das_tickbox":"1","intvolume":" 38","citation":{"mla":"Basile, Lorenzo, et al. “Head Pursuit: Probing Attention Specialization in Multimodal Transformers.” 39th Annual Conference on Neural Information Processing Systems, vol. 38, Neural Information Processing Systems Foundation, 2025.","ama":"Basile L, Maiorca V, Doimo D, Locatello F, Cazzaniga A. Head pursuit: Probing attention specialization in multimodal transformers. In: 39th Annual Conference on Neural Information Processing Systems. Vol 38. Neural Information Processing Systems Foundation; 2025.","chicago":"Basile, Lorenzo, Valentino Maiorca, Diego Doimo, Francesco Locatello, and Alberto Cazzaniga. “Head Pursuit: Probing Attention Specialization in Multimodal Transformers.” In 39th Annual Conference on Neural Information Processing Systems, Vol. 38. Neural Information Processing Systems Foundation, 2025.","short":"L. Basile, V. Maiorca, D. Doimo, F. Locatello, A. Cazzaniga, in:, 39th Annual Conference on Neural Information Processing Systems, Neural Information Processing Systems Foundation, 2025.","apa":"Basile, L., Maiorca, V., Doimo, D., Locatello, F., & Cazzaniga, A. (2025). Head pursuit: Probing attention specialization in multimodal transformers. In 39th Annual Conference on Neural Information Processing Systems (Vol. 38). San Diego, CA, United States: Neural Information Processing Systems Foundation.","ista":"Basile L, Maiorca V, Doimo D, Locatello F, Cazzaniga A. 2025. Head pursuit: Probing attention specialization in multimodal transformers. 39th Annual Conference on Neural Information Processing Systems. NeurIPS: Neural Information Processing Systems vol. 38.","ieee":"L. Basile, V. Maiorca, D. Doimo, F. Locatello, and A. Cazzaniga, “Head pursuit: Probing attention specialization in multimodal transformers,” in 39th Annual Conference on Neural Information Processing Systems, San Diego, CA, United States, 2025, vol. 38."},"arxiv":1,"year":"2025","OA_type":"gold","OA_place":"publisher","oa":1,"file_date_updated":"2026-01-29T14:29:14Z","publication_identifier":{"issn":["1049-5258"]},"title":"Head pursuit: Probing attention specialization in multimodal transformers","external_id":{"arxiv":["2510.21518"]},"abstract":[{"lang":"eng","text":"Language and vision-language models have shown impressive performance across a wide range of tasks, but their internal mechanisms remain only partly understood. In this work, we study how individual attention heads in text-generative models specialize in specific semantic or visual attributes. Building on an established interpretability method, we reinterpret the practice of probing intermediate activations with the final decoding layer through the lens of signal processing. This lets us analyze multiple samples in a principled way and rank attention heads based on their relevance to target concepts. Our results show consistent patterns of specialization at the head level across both unimodal and multimodal transformers. Remarkably, we find that editing as few as 1% of the heads, selected using our method, can reliably suppress or enhance targeted concepts in the model output. We validate our approach on language tasks such as question answering and toxicity mitigation, as well as vision-language tasks including image classification and captioning. Our findings highlight an interpretable and controllable structure within attention layers, offering simple tools for understanding and editing large-scale generative models."}],"date_published":"2025-12-15T00:00:00Z","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"_id":"21072","date_updated":"2026-07-28T07:18:12Z","type":"conference","status":"public","volume":38},{"corr_author":"1","acknowledged_ssus":[{"_id":"EM-Fac"},{"_id":"LifeSc"},{"_id":"NanoFab"},{"_id":"MassSpec"}],"page":"32199-32208","date_created":"2025-09-10T05:44:03Z","author":[{"full_name":"Liu, Yu","first_name":"Yu","id":"2A70014E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-7313-6740","last_name":"Liu"},{"first_name":"Tobias","full_name":"Kleinhanns, Tobias","orcid":"0000-0003-1537-7436","id":"8BD9DE16-AB3C-11E9-9C8C-2A03E6697425","last_name":"Kleinhanns"},{"last_name":"Horta","id":"03a7e858-01b1-11ec-8b71-99ae6c4a05bc","first_name":"Sharona","full_name":"Horta, Sharona"},{"first_name":"Ewelina","full_name":"Dutkiewicz, Ewelina","id":"0601cc46-c082-11ec-9b07-bb29641d1de9","last_name":"Dutkiewicz"},{"last_name":"Lu","full_name":"Lu, Shaoqing","first_name":"Shaoqing"},{"last_name":"Spadaro","first_name":"Maria Chiara","full_name":"Spadaro, Maria Chiara"},{"last_name":"Genç","full_name":"Genç, Aziz","first_name":"Aziz"},{"last_name":"Chen","full_name":"Chen, Lei","first_name":"Lei"},{"last_name":"Lim","full_name":"Lim, Khak Ho","first_name":"Khak Ho"},{"first_name":"Min","full_name":"Hong, Min","last_name":"Hong"},{"last_name":"Arbiol","full_name":"Arbiol, Jordi","first_name":"Jordi"},{"id":"43C61214-F248-11E8-B48F-1D18A9856A87","last_name":"Ibáñez","orcid":"0000-0001-5013-2843","full_name":"Ibáñez, Maria","first_name":"Maria"}],"has_accepted_license":"1","oa_version":"Published Version","article_processing_charge":"Yes (via OA deal)","fulldoi":"https://doi.org/10.1021/jacs.5c11435","quality_controlled":"1","month":"08","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_type":"original","publication_status":"published","language":[{"iso":"eng"}],"ddc":["540"],"publication":"Journal of the American Chemical Society","isi":1,"project":[{"name":"HighTE: The Werner Siemens Laboratory for the High Throughput Discovery of Semiconductors for Waste Heat Recovery","_id":"9B8F7476-BA93-11EA-9121-9846C619BF3A"}],"acknowledgement":"M.I. acknowledges financial support from ISTA and the Werner Siemens Foundation. The Scientific Service Units (SSU) of ISTA supported this work through resources provided by the Electron Microscopy Facility (EMF), the Lab Support Facility (LSF) and the Nanofabrication Facility (NNF) and the LSF Mass Spectrometry Service. The members of the Ibáñez research group are acknowledged, especially Christine Fiedler for scientific illustration and Ihor Cherniukh for valuable discussions. Y.L. acknowledges funding from the National Natural Science Foundation of China (NSFC) (Grants No. 22209034), the Innovation and Entrepreneurship Project of Overseas Returnees in Anhui Province (Grant No. 2022LCX002) and the Fundamental Research Funds for the Central Universities (JZ2024HGTB0239). K.H.L. acknowledges financial support from the National Natural Science Foundation of China (NSFC) (Grant No. 22208293). ICN2 acknowledges funding from Generalitat de Catalunya 2021SGR00457. Authors acknowledge the Advanced Materials programme by the Spanish Government with funding from European Union NextGenerationEU (PRTR-C17.I1) and by Generalitat de Catalunya (Project In-CAEM). The authors thank support from the project AMaDE (PID2023-149158OB-C43), funded by MCIN/AEI/10.13039/501100011033/and by “ERDF Away of making Europe”, by the “European Union”. ICN2 is supported by the Severo Ochoa program from Spanish MCIN/AEI (Grant No.: CEX2021-001214-S) and is funded by the CERCA Programme/Generalitat de Catalunya. ICN2 is founding member of e-DREAM. (68) M.H. acknowledges the funding from the Australian Research Council (FT230100316 and IH200100035). M.H. acknowledges the computational support from the National Computational Infrastructure (NCI) and Pawsey Supercomputing Centre, Australia.","scopus_import":"1","day":"22","department":[{"_id":"MaIb"},{"_id":"MassSpec"}],"publisher":"American Chemical Society","year":"2025","file":[{"creator":"dernst","file_size":9997327,"content_type":"application/pdf","relation":"main_file","date_updated":"2025-09-10T06:55:17Z","date_created":"2025-09-10T06:55:17Z","access_level":"open_access","checksum":"52892fa91adadd39a1c42da9e01139a5","file_id":"20334","file_name":"2025_JACS_Liu.pdf","success":1}],"intvolume":" 147","PlanS_conform":"1","citation":{"apa":"Liu, Y., Kleinhanns, T., Horta, S., Dutkiewicz, E., Lu, S., Spadaro, M. C., … Ibáñez, M. (2025). Liquid-solid interface reactions drive enhanced thermoelectric performance in Ag2Se. Journal of the American Chemical Society. American Chemical Society. https://doi.org/10.1021/jacs.5c11435","ieee":"Y. Liu et al., “Liquid-solid interface reactions drive enhanced thermoelectric performance in Ag2Se,” Journal of the American Chemical Society, vol. 147, no. 35. American Chemical Society, pp. 32199–32208, 2025.","ista":"Liu Y, Kleinhanns T, Horta S, Dutkiewicz E, Lu S, Spadaro MC, Genç A, Chen L, Lim KH, Hong M, Arbiol J, Ibáñez M. 2025. Liquid-solid interface reactions drive enhanced thermoelectric performance in Ag2Se. Journal of the American Chemical Society. 147(35), 32199–32208.","short":"Y. Liu, T. Kleinhanns, S. Horta, E. Dutkiewicz, S. Lu, M.C. Spadaro, A. Genç, L. Chen, K.H. Lim, M. Hong, J. Arbiol, M. Ibáñez, Journal of the American Chemical Society 147 (2025) 32199–32208.","chicago":"Liu, Yu, Tobias Kleinhanns, Sharona Horta, Ewelina Dutkiewicz, Shaoqing Lu, Maria Chiara Spadaro, Aziz Genç, et al. “Liquid-Solid Interface Reactions Drive Enhanced Thermoelectric Performance in Ag2Se.” Journal of the American Chemical Society. American Chemical Society, 2025. https://doi.org/10.1021/jacs.5c11435.","mla":"Liu, Yu, et al. “Liquid-Solid Interface Reactions Drive Enhanced Thermoelectric Performance in Ag2Se.” Journal of the American Chemical Society, vol. 147, no. 35, American Chemical Society, 2025, pp. 32199–208, doi:10.1021/jacs.5c11435.","ama":"Liu Y, Kleinhanns T, Horta S, et al. Liquid-solid interface reactions drive enhanced thermoelectric performance in Ag2Se. Journal of the American Chemical Society. 2025;147(35):32199-32208. doi:10.1021/jacs.5c11435"},"doi":"10.1021/jacs.5c11435","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"date_published":"2025-08-22T00:00:00Z","_id":"20326","date_updated":"2026-07-28T09:55:14Z","type":"journal_article","status":"public","related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"22017"}]},"volume":147,"issue":"35","OA_type":"hybrid","OA_place":"publisher","oa":1,"publication_identifier":{"issn":["0002-7863"],"eissn":["1520-5126"]},"title":"Liquid-solid interface reactions drive enhanced thermoelectric performance in Ag2Se","file_date_updated":"2025-09-10T06:55:17Z","external_id":{"isi":["001558320100001"]},"abstract":[{"text":"Ag2Se is a promising n-type thermoelectric material, but its performance is limited by excessive carrier concentration, compositional inhomogeneity, and phase instability, challenges rooted in a narrow homogeneity range and uncontrolled Ag+ diffusion in the superionic phase. Here, we address these issues by exploiting liquid–solid interface reactions using CdSe complexes that remove surface excess Ag to yield stoichiometric Ag2Se and generate CdSe nanodomains that inhibit Ag+ diffusion and constrain grain growth. The resulting Ag2Se-CdSe nanocomposites exhibit a reproducible, stable figure of merit (zT) of 1.04 between 300 and 390 K. Beyond demonstrating high performance, we elucidate the interfacial chemical reactions that give rise to the observed microstructure and transport properties, providing a foundation for rationally engineering interfacial chemistry to tailor transport properties across diverse thermoelectric material systems.","lang":"eng"}]},{"PlanS_conform":"1","citation":{"short":"E. York, I. Stone, W. Shi, X. Roy, L. Venkataraman, Nano Letters 25 (2025) 13697–13702.","ieee":"E. York, I. Stone, W. Shi, X. Roy, and L. Venkataraman, “Tuning conductance in BODIPY-based single-molecule junctions,” Nano Letters, vol. 25, no. 36. American Chemical Society, pp. 13697–13702, 2025.","ista":"York E, Stone I, Shi W, Roy X, Venkataraman L. 2025. Tuning conductance in BODIPY-based single-molecule junctions. Nano Letters. 25(36), 13697–13702.","apa":"York, E., Stone, I., Shi, W., Roy, X., & Venkataraman, L. (2025). Tuning conductance in BODIPY-based single-molecule junctions. Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.5c03764","mla":"York, Emma, et al. “Tuning Conductance in BODIPY-Based Single-Molecule Junctions.” Nano Letters, vol. 25, no. 36, American Chemical Society, 2025, pp. 13697–702, doi:10.1021/acs.nanolett.5c03764.","ama":"York E, Stone I, Shi W, Roy X, Venkataraman L. Tuning conductance in BODIPY-based single-molecule junctions. Nano Letters. 2025;25(36):13697-13702. doi:10.1021/acs.nanolett.5c03764","chicago":"York, Emma, Ilana Stone, Wanzhuo Shi, Xavier Roy, and Latha Venkataraman. “Tuning Conductance in BODIPY-Based Single-Molecule Junctions.” Nano Letters. American Chemical Society, 2025. https://doi.org/10.1021/acs.nanolett.5c03764."},"das_tickbox":"1","intvolume":" 25","file":[{"success":1,"file_name":"2025_NanoLetters_York.pdf","file_id":"20910","checksum":"bac881601e1f33c3cf8f51d50b958e68","date_created":"2025-12-30T09:39:44Z","access_level":"open_access","date_updated":"2025-12-30T09:39:44Z","relation":"main_file","content_type":"application/pdf","file_size":3144989,"creator":"dernst"}],"year":"2025","external_id":{"isi":["001557017200001"],"pmid":["40855728"]},"abstract":[{"text":"Here, we present a foundational investigation of charge transport through three BODIPY-based molecules using the scanning tunneling microscope–break junction (STM-BJ) technique. We demonstrate that molecular conductance through the BODIPY core can be measured by introducing aurophilic linkers at the 2,6-positions. By varying these linkers, we systematically modulate the frontier molecular orbital energies and fine-tune transport behavior. Our experimental results are supported by DFT-based calculations, which feature a new computationally efficient correction to standard PBE-level transmission predictions. Together, these findings establish the viability of BODIPY-based systems for molecular junction applications and lay the groundwork for future studies of their single-molecule optoelectronic properties.","lang":"eng"}],"oa":1,"file_date_updated":"2025-12-30T09:39:44Z","title":"Tuning conductance in BODIPY-based single-molecule junctions","publication_identifier":{"eissn":["1530-6992"],"issn":["1530-6984"]},"OA_type":"hybrid","OA_place":"publisher","issue":"36","volume":25,"date_updated":"2026-07-28T09:53:54Z","status":"public","type":"journal_article","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"doi":"10.1021/acs.nanolett.5c03764","date_published":"2025-08-25T00:00:00Z","_id":"20331","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","quality_controlled":"1","fulldoi":"https://doi.org/10.1021/acs.nanolett.5c03764","month":"08","oa_version":"Published Version","article_processing_charge":"Yes (via OA deal)","author":[{"id":"08dde91e-8e0a-11f0-9d7d-9e8d80864f16","last_name":"York","full_name":"York, Emma","first_name":"Emma"},{"last_name":"Stone","first_name":"Ilana","full_name":"Stone, Ilana"},{"full_name":"Shi, Wanzhuo","first_name":"Wanzhuo","last_name":"Shi","id":"a3010425-87c8-11f0-8106-bec32bea74da"},{"first_name":"Xavier","full_name":"Roy, Xavier","last_name":"Roy"},{"orcid":"0000-0002-6957-6089","last_name":"Venkataraman","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","first_name":"Latha","full_name":"Venkataraman, Latha"}],"has_accepted_license":"1","acknowledged_ssus":[{"_id":"LifeSc"},{"_id":"MassSpec"}],"date_created":"2025-09-10T05:48:29Z","page":"13697-13702","corr_author":"1","publisher":"American Chemical Society","day":"25","department":[{"_id":"LaVe"}],"pmid":1,"scopus_import":"1","isi":1,"acknowledgement":"We thank the National Science Foundation (No. NSF-DMR 2241180) for supporting this research. Synthetic work at Columbia was funded in part by the Air Force Office of Scientific Research (AFOSR), under Grant No. FA9550-22-1-0389. The cryoprobe on the 500 MHz NMR instrument used in this research at Columbia was purchased through the NIH Award No. S10OD026749. This work was supported in part by the Institute of Science and Technology Austria. HRMS sample preparation, analysis, and data evaluation were performed by Aikaterina Paraskevopoulou, Mass Spec Service, LSF, ISTA.","publication":"Nano Letters","article_type":"letter_note","publication_status":"published","ddc":["540"],"language":[{"iso":"eng"}]},{"author":[{"full_name":"Karle, Volker","first_name":"Volker","orcid":"0000-0002-6963-0129","last_name":"Karle","id":"D7C012AE-D7ED-11E9-95E8-1EC5E5697425"}],"has_accepted_license":"1","corr_author":"1","page":"192","date_created":"2025-03-12T13:04:59Z","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","oa_version":"Published Version","article_processing_charge":"No","month":"03","fulldoi":"https://doi.org/10.15479/AT-ISTA-19393","publication_status":"published","language":[{"iso":"eng"}],"ddc":["530"],"department":[{"_id":"GradSch"},{"_id":"MiLe"}],"day":"13","publisher":"Institute of Science and Technology Austria","supervisor":[{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","first_name":"Mikhail","full_name":"Lemeshko, Mikhail"}],"degree_awarded":"PhD","year":"2025","citation":{"ista":"Karle V. 2025. Non-equilibrium topological phases with periodically driven molecules and quantum rotors. Institute of Science and Technology Austria.","ieee":"V. Karle, “Non-equilibrium topological phases with periodically driven molecules and quantum rotors,” Institute of Science and Technology Austria, 2025.","apa":"Karle, V. (2025). Non-equilibrium topological phases with periodically driven molecules and quantum rotors. Institute of Science and Technology Austria. https://doi.org/10.15479/AT-ISTA-19393","short":"V. Karle, Non-Equilibrium Topological Phases with Periodically Driven Molecules and Quantum Rotors, Institute of Science and Technology Austria, 2025.","chicago":"Karle, Volker. “Non-Equilibrium Topological Phases with Periodically Driven Molecules and Quantum Rotors.” Institute of Science and Technology Austria, 2025. https://doi.org/10.15479/AT-ISTA-19393.","mla":"Karle, Volker. Non-Equilibrium Topological Phases with Periodically Driven Molecules and Quantum Rotors. Institute of Science and Technology Austria, 2025, doi:10.15479/AT-ISTA-19393.","ama":"Karle V. Non-equilibrium topological phases with periodically driven molecules and quantum rotors. 2025. doi:10.15479/AT-ISTA-19393"},"alternative_title":["ISTA Thesis"],"file":[{"success":1,"date_updated":"2025-03-12T12:56:46Z","date_created":"2025-03-12T12:56:46Z","access_level":"open_access","checksum":"d3ab25782c7ea38ce9910e57d25f6733","file_name":"thesis_final.pdf","file_id":"19394","file_size":10625143,"content_type":"application/pdf","relation":"main_file","creator":"vkarle"},{"creator":"vkarle","file_size":23119202,"relation":"source_file","content_type":"application/zip","access_level":"closed","date_created":"2025-03-13T13:15:10Z","date_updated":"2025-03-20T08:02:35Z","file_name":"thesis.zip","file_id":"19400","checksum":"3ccfb0aeba4d860d71e18347913034e4"}],"tmp":{"short":"CC BY-NC-ND (4.0)","image":"/images/cc_by_nc_nd.png","name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode"},"doi":"10.15479/AT-ISTA-19393","date_published":"2025-03-13T00:00:00Z","_id":"19393","date_updated":"2026-07-29T08:59:30Z","status":"public","type":"dissertation","related_material":{"record":[{"status":"public","id":"14851","relation":"part_of_dissertation"},{"status":"public","id":"12788","relation":"part_of_dissertation"},{"relation":"part_of_dissertation","id":"9903","status":"public"},{"id":"15004","status":"public","relation":"part_of_dissertation"},{"status":"public","id":"19425","relation":"part_of_dissertation"}]},"abstract":[{"text":"Rotations constitute one of the fundamental symmetries in physics, characterized by their intricate group structure and infinite dimensional representations. In contrast to classical rotations, quantum mechanics unveils the SO(3) symmetry group structure, manifesting in phenomena without classical counterparts, from angular momentum quantization to non-trivial addition of angular momenta.\r\nWhile most studies of topological physics have focused on two-band systems, the SO(3) symmetry group of quantum rotors offers an inherently more complex platform with unprecedented possibilities for exploring topological phenomena. Despite their ubiquity in nature– from molecules to nanorotors– their potential for hosting topological phases has remained largely unexamined.\r\nIn this thesis, we mainly focus on periodically driven linear molecules as a prototype for studying topological phenomena in quantum rotors. Recent technological advances in coherent control of molecules, particularly through precisely shaped laser pulses, have made it possible to investigate linear rotors in the context of topology. While planar rotors have received some attention in recent years, threedimensional rotors–particularly linear molecules–harbor substantially richer topological phenomena due to their non-abelian nature and their additional angular degrees of freedom. We demonstrate that these systems can host novel edge states and topological features fundamentally impossible in planar systems.\r\nWe begin by establishing a theoretical bridge between periodically kicked rotors and \"crystalline\" lattices in angular momentum space. Using non-interacting linear molecules as our primary example, we show how quantum interference and revival patterns lead to the possibility to simulate band models with arbitrary number of bands N. While our framework applies to various quantum rotors, including nanorotors and kicked Bose-Einstein condensates, linear\r\nmolecules provide an ideal experimental platform due to their abovementioned precise controllability.\r\nThe core of this work examines adiabatic dynamics of 3D quantum rotors, establishing a geometric framework based on the Euler class to characterize its non-abelian topology. The non-Hermitian nature of the system enables novel braiding behaviors and topological transitions impossible in static systems, leading to an anomalous Dirac string phase with edge states in each gap, even though the Berry phases are all zero. These features can be directly observed through\r\nmolecular alignment and rotational level populations.\r\nThese findings establish quantum rotors as an alternative platform for studying multi-band topological physics, while suggesting practical implementations for quantum computation where topological protection could offer natural resilience against decoherence. The rich structure of three-dimensional rotation groups, combined with the tunability of topological features through driving parameters, makes this platform particularly valuable for exploring fundamental\r\nphysics and developing quantum technologies.","lang":"eng"}],"OA_place":"publisher","OA_type":"gold","oa":1,"title":"Non-equilibrium topological phases with periodically driven molecules and quantum rotors","publication_identifier":{"eissn":["2663-337X"]},"file_date_updated":"2025-03-20T08:02:35Z"},{"oa_version":"None","article_processing_charge":"No","month":"09","fulldoi":"https://doi.org/10.4064/aa250115-14-7","supplementarymaterial":"no","quality_controlled":"1","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","corr_author":"1","date_created":"2025-11-04T14:33:16Z","page":"289-303","author":[{"first_name":"Christian","full_name":"Elsholtz, Christian","last_name":"Elsholtz"},{"full_name":"Ruzsa, Imre Z.","first_name":"Imre Z.","last_name":"Ruzsa"},{"full_name":"Wurzinger, Lena","first_name":"Lena","orcid":"0009-0004-5360-0074","last_name":"Wurzinger","id":"50c57d72-32a8-11ee-aeea-d652094d2ccd"}],"isi":1,"acknowledgement":"The authors would like to thank the referee and Ilya Shkredov for comments on the manuscript.\r\nC. E. is supported by a joint FWF-ANR project ArithRand, grant numbers FWF I 4945-N and ANR-20-CE91-0006.\r\n","scopus_import":"1","publisher":"Institute of Mathematics","department":[{"_id":"TiBr"}],"day":"12","article_type":"original","publication_status":"published","language":[{"iso":"eng"}],"publication":"Acta Arithmetica","das_tickbox":"0","intvolume":" 220","researchdata_availability":"no","citation":{"ama":"Elsholtz C, Ruzsa IZ, Wurzinger L. Sumset growth in progression-free sets. Acta Arithmetica. 2025;220:289-303. doi:10.4064/aa250115-14-7","mla":"Elsholtz, Christian, et al. “Sumset Growth in Progression-Free Sets.” Acta Arithmetica, vol. 220, Institute of Mathematics, 2025, pp. 289–303, doi:10.4064/aa250115-14-7.","chicago":"Elsholtz, Christian, Imre Z. Ruzsa, and Lena Wurzinger. “Sumset Growth in Progression-Free Sets.” Acta Arithmetica. Institute of Mathematics, 2025. https://doi.org/10.4064/aa250115-14-7.","short":"C. Elsholtz, I.Z. Ruzsa, L. Wurzinger, Acta Arithmetica 220 (2025) 289–303.","apa":"Elsholtz, C., Ruzsa, I. Z., & Wurzinger, L. (2025). Sumset growth in progression-free sets. Acta Arithmetica. Institute of Mathematics. https://doi.org/10.4064/aa250115-14-7","ieee":"C. Elsholtz, I. Z. Ruzsa, and L. Wurzinger, “Sumset growth in progression-free sets,” Acta Arithmetica, vol. 220. Institute of Mathematics, pp. 289–303, 2025.","ista":"Elsholtz C, Ruzsa IZ, Wurzinger L. 2025. Sumset growth in progression-free sets. Acta Arithmetica. 220, 289–303."},"year":"2025","OA_type":"closed access","title":"Sumset growth in progression-free sets","publication_identifier":{"issn":["0065-1036"],"eissn":["1730-6264"]},"external_id":{"isi":["001570716800001"]},"abstract":[{"text":"We study the growth of sumsets A+B⊂S⊂G, where S does not contain an arithmetic progression of length 2k+1, and where G is a commutative group, in which every nonzero element has an order of at least 2k+1. More specifically, we show the following: if A,B⊂G are sets such that A+B does not contain an arithmetic progression of length 2k+1, then\r\n|A+B|≥|A|2k−13k−2|B|k3k−2.\r\nAs an application we derive upper bounds on the cardinality of the summands in sumsets A+B+C contained in the set of t-th powers, where t≥2 is an integer. In particular, we show that min(|A|,|B|,|C|)≪(logN)4/5 for t=2, and min(|A|,|B|,|C|)≪t(logN)1/2 for t≥3.","lang":"eng"}],"doi":"10.4064/aa250115-14-7","date_published":"2025-09-12T00:00:00Z","_id":"20603","date_updated":"2026-07-29T09:51:25Z","status":"public","type":"journal_article","volume":220}]