--- _id: '15292' abstract: - lang: eng text: We present a rigid body animation technique which prevents solids from interpenetrating, dissipates energy through friction, and propagates shocks through contacts. We employ the Alternating Direction Method of Multipliers (ADMM) to couple non-smooth Coulomb friction with impact propagation, allowing efficient and accurate non-smooth dynamics along with a correct transmission of impacts through assemblies of rigid bodies. We further extend our method to model adhesion, dynamic friction and lubricated contact. acknowledgement: We thank the anonymous reviewers and the members of the Visual Computing Group at ISTA for their helpful comments. This research was supported by the Scientific Service Units (SSU) of ISTA through resources provided by Scientific Computing, and was funded in part by the European Union (ERC-2021-COG 101045083 CoDiNA) article_processing_charge: No author: - first_name: Yi-Lu full_name: Chen, Yi-Lu id: 0b467602-dbcd-11ea-9d1d-ed480aa46b70 last_name: Chen - first_name: Mickaël full_name: Ly, Mickaël id: 6340d7f0-b48d-11eb-b10d-b7487e71d9f1 last_name: Ly - first_name: Christopher J full_name: Wojtan, Christopher J id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87 last_name: Wojtan orcid: 0000-0001-6646-5546 citation: ama: Chen Y-L, Ly M, Wojtan C. Unified Treatment of Contact, Friction and Shock-Propagation in Rigid Body Animation. ACM; 2023. doi:10.1145/3606037.3606836 apa: 'Chen, Y.-L., Ly, M., & Wojtan, C. (2023). Unified treatment of contact, friction and shock-propagation in rigid body animation. Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation. Los Angeles, CA, United States: ACM. https://doi.org/10.1145/3606037.3606836' chicago: Chen, Yi-Lu, Mickaël Ly, and Chris Wojtan. Unified Treatment of Contact, Friction and Shock-Propagation in Rigid Body Animation. Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation. ACM, 2023. https://doi.org/10.1145/3606037.3606836. ieee: Y.-L. Chen, M. Ly, and C. Wojtan, Unified treatment of contact, friction and shock-propagation in rigid body animation. ACM, 2023. ista: Chen Y-L, Ly M, Wojtan C. 2023. Unified treatment of contact, friction and shock-propagation in rigid body animation, ACM,p. mla: Chen, Yi-Lu, et al. “Unified Treatment of Contact, Friction and Shock-Propagation in Rigid Body Animation.” Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation, ACM, 2023, doi:10.1145/3606037.3606836. short: Y.-L. Chen, M. Ly, C. Wojtan, Unified Treatment of Contact, Friction and Shock-Propagation in Rigid Body Animation, ACM, 2023. conference: end_date: 2023-08-06 location: Los Angeles, CA, United States name: 'SCA: Symposium on Computer Animation' start_date: 2023-08-04 corr_author: '1' date_created: 2024-04-03T14:57:23Z date_published: 2023-08-01T00:00:00Z date_updated: 2025-04-14T12:58:27Z day: '01' ddc: - '005' - '531' department: - _id: GradSch - _id: ChWo doi: 10.1145/3606037.3606836 file: - access_level: open_access checksum: 88bdef929ca262ee0eefae0bbc649139 content_type: video/mp4 creator: yichen date_created: 2024-04-03T14:58:24Z date_updated: 2024-04-03T14:58:24Z file_id: '15293' file_name: video.mp4 file_size: 58770929 relation: main_file success: 1 - access_level: open_access checksum: c06881ba847da365a74ac09c953eaffd content_type: application/pdf creator: yichen date_created: 2024-04-03T14:58:23Z date_updated: 2024-04-03T14:58:23Z file_id: '15294' file_name: frictionPoster_clean.pdf file_size: 3951968 relation: main_file success: 1 file_date_updated: 2024-04-03T14:58:24Z fulldoi: https://doi.org/10.1145/3606037.3606836 has_accepted_license: '1' language: - iso: eng month: '08' oa: 1 oa_version: None project: - _id: 34bc2376-11ca-11ed-8bc3-9a3b3961a088 grant_number: '101045083' name: Computational Discovery of Numerical Algorithms for Animation and Simulation of Natural Phenomena publication: Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Computer Animation publication_status: published publisher: ACM related_material: record: - id: '14748' relation: other status: public status: public title: Unified treatment of contact, friction and shock-propagation in rigid body animation type: conference_poster user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2023' ... --- _id: '17074' abstract: - lang: eng text: We verify Bogoliubov's approximation for translation invariant Bose gases in the mean field regime, i.e. we prove that the ground state energy EN is given by EN=NeH+infσ(H)+oN→∞(1), where N is the number of particles, eH is the minimal Hartree energy and H is the Bogoliubov Hamiltonian. As an intermediate result we show the existence of approximate ground states ΨN, i.e. states satisfying ⟨HN⟩ΨN=EN+oN→∞(1), exhibiting complete Bose--Einstein condensation with respect to one of the Hartree minimizers. acknowledgement: "We are grateful to Rupert Frank for helpful discussions at an early stage of this project.\r\nFunding from the European Union’s Horizon 2020 research and innovation programme\r\nunder the ERC grant agreement No 694227 is acknowledged." article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Morris full_name: Brooks, Morris id: B7ECF9FC-AA38-11E9-AC9A-0930E6697425 last_name: Brooks orcid: 0000-0002-6249-0928 - first_name: Robert full_name: Seiringer, Robert id: 4AFD0470-F248-11E8-B48F-1D18A9856A87 last_name: Seiringer orcid: 0000-0002-6781-0521 citation: ama: Brooks M, Seiringer R. Validity of Bogoliubov’s approximation fortranslation-invariant Bose gases. Probability and Mathematical Physics. 2023;3(4):939-1000. doi:10.2140/pmp.2022.3.939 apa: Brooks, M., & Seiringer, R. (2023). Validity of Bogoliubov’s approximation fortranslation-invariant Bose gases. Probability and Mathematical Physics. Mathematical Sciences Publishers. https://doi.org/10.2140/pmp.2022.3.939 chicago: Brooks, Morris, and Robert Seiringer. “Validity of Bogoliubov’s Approximation Fortranslation-Invariant Bose Gases.” Probability and Mathematical Physics. Mathematical Sciences Publishers, 2023. https://doi.org/10.2140/pmp.2022.3.939. ieee: M. Brooks and R. Seiringer, “Validity of Bogoliubov’s approximation fortranslation-invariant Bose gases,” Probability and Mathematical Physics, vol. 3, no. 4. Mathematical Sciences Publishers, pp. 939–1000, 2023. ista: Brooks M, Seiringer R. 2023. Validity of Bogoliubov’s approximation fortranslation-invariant Bose gases. Probability and Mathematical Physics. 3(4), 939–1000. mla: Brooks, Morris, and Robert Seiringer. “Validity of Bogoliubov’s Approximation Fortranslation-Invariant Bose Gases.” Probability and Mathematical Physics, vol. 3, no. 4, Mathematical Sciences Publishers, 2023, pp. 939–1000, doi:10.2140/pmp.2022.3.939. short: M. Brooks, R. Seiringer, Probability and Mathematical Physics 3 (2023) 939–1000. corr_author: '1' date_created: 2024-05-29T06:12:54Z date_published: 2023-02-21T00:00:00Z date_updated: 2025-04-14T07:26:59Z day: '21' department: - _id: RoSe doi: 10.2140/pmp.2022.3.939 ec_funded: 1 external_id: arxiv: - '2111.13864' fulldoi: https://doi.org/10.2140/pmp.2022.3.939 intvolume: ' 3' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2111.13864 month: '02' oa: 1 oa_version: Preprint page: 939-1000 project: - _id: 25C6DC12-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '694227' name: Analysis of quantum many-body systems publication: Probability and Mathematical Physics publication_identifier: eissn: - 2690-1005 issn: - 2690-0998 publication_status: published publisher: Mathematical Sciences Publishers quality_controlled: '1' scopus_import: '1' status: public title: Validity of Bogoliubov’s approximation fortranslation-invariant Bose gases type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 3 year: '2023' ... --- _id: '17078' abstract: - lang: eng text: For the emergence of life, the abiotic synthesis of RNA from its monomers is a central step. We found that in alkaline, drying conditions in bulk and at heated air‐water interfaces, 2′,3′‐cyclic nucleotides oligomerised without additional catalyst, forming up to 10‐mers within a day. The oligomerisation proceeded at a pH range of 7–12, at temperatures between 40–80 °C and was marginally enhanced by K+ ions. Among the canonical ribonucleotides, cGMP oligomerised most efficiently. Quantification was performed using HPLC coupled to ESI‐TOF by fitting the isotope distribution to the mass spectra. Our study suggests a oligomerisation mechanism where cGMP aids the incorporation of the relatively unreactive nucleotides C, A and U. The 2′,3′‐cyclic ribonucleotides are byproducts of prebiotic phosphorylation, nucleotide syntheses and RNA hydrolysis, indicating direct recycling pathways. The simple reaction condition offers a plausible entry point for RNA to the evolution of life on early Earth. acknowledgement: We would like to thank Ulrich Gerland, Tobias Göppel, Joachim Rosenberger and Bernhard Altaner for their helpful remarks and discussions; Thomas Matreux, Alexandra Kühnlein, Noël Yeh Martin and Maximilian Weingart for comments on the manuscript. The authors thank J. Kussmann (LMU Munich) for providing a development version of the FermiONs++ program package. Financial support was provided by the European Research Council (ERC Evotrap, grant no. 787356, the Simons Foundation (grant no. 327125), the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – Project-ID 364653263 – TRR 235 (CRC 235), the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy – EXC-2094 – 390783311, and the Center for NanoScience. Open Access funding enabled and organized by Projekt DEAL. article_number: e202200026 article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Avinash Vicholous full_name: Dass, Avinash Vicholous last_name: Dass - first_name: Sreekar full_name: Wunnava, Sreekar last_name: Wunnava - first_name: Juliette full_name: Langlais, Juliette last_name: Langlais - first_name: Beatriz full_name: von der Esch, Beatriz last_name: von der Esch - first_name: Maik full_name: Krusche, Maik last_name: Krusche - first_name: Lennard full_name: Ufer, Lennard last_name: Ufer - first_name: Nico full_name: Chrisam, Nico last_name: Chrisam - first_name: Romeo C. A. full_name: Dubini, Romeo C. A. last_name: Dubini - first_name: Florian full_name: Gartner, Florian last_name: Gartner - first_name: Severin full_name: Angerpointner, Severin last_name: Angerpointner - first_name: Christina F. full_name: Dirscherl, Christina F. last_name: Dirscherl - first_name: Petra full_name: Rovo, Petra id: c316e53f-b965-11eb-b128-bb26acc59c00 last_name: Rovo orcid: 0000-0001-8729-7326 - first_name: Christof B. full_name: Mast, Christof B. last_name: Mast - first_name: Judit E. full_name: Šponer, Judit E. last_name: Šponer - first_name: Christian full_name: Ochsenfeld, Christian last_name: Ochsenfeld - first_name: Erwin full_name: Frey, Erwin last_name: Frey - first_name: Dieter full_name: Braun, Dieter last_name: Braun citation: ama: Dass AV, Wunnava S, Langlais J, et al. RNA oligomerisation without added catalyst from 2′,3′‐cyclic nucleotides by drying at air-water interfaces. ChemSystemsChem. 2023;5(1). doi:10.1002/syst.202200026 apa: Dass, A. V., Wunnava, S., Langlais, J., von der Esch, B., Krusche, M., Ufer, L., … Braun, D. (2023). RNA oligomerisation without added catalyst from 2′,3′‐cyclic nucleotides by drying at air-water interfaces. ChemSystemsChem. Wiley. https://doi.org/10.1002/syst.202200026 chicago: Dass, Avinash Vicholous, Sreekar Wunnava, Juliette Langlais, Beatriz von der Esch, Maik Krusche, Lennard Ufer, Nico Chrisam, et al. “RNA Oligomerisation without Added Catalyst from 2′,3′‐cyclic Nucleotides by Drying at Air-Water Interfaces.” ChemSystemsChem. Wiley, 2023. https://doi.org/10.1002/syst.202200026. ieee: A. V. Dass et al., “RNA oligomerisation without added catalyst from 2′,3′‐cyclic nucleotides by drying at air-water interfaces,” ChemSystemsChem, vol. 5, no. 1. Wiley, 2023. ista: Dass AV, Wunnava S, Langlais J, von der Esch B, Krusche M, Ufer L, Chrisam N, Dubini RCA, Gartner F, Angerpointner S, Dirscherl CF, Rovo P, Mast CB, Šponer JE, Ochsenfeld C, Frey E, Braun D. 2023. RNA oligomerisation without added catalyst from 2′,3′‐cyclic nucleotides by drying at air-water interfaces. ChemSystemsChem. 5(1), e202200026. mla: Dass, Avinash Vicholous, et al. “RNA Oligomerisation without Added Catalyst from 2′,3′‐cyclic Nucleotides by Drying at Air-Water Interfaces.” ChemSystemsChem, vol. 5, no. 1, e202200026, Wiley, 2023, doi:10.1002/syst.202200026. short: A.V. Dass, S. Wunnava, J. Langlais, B. von der Esch, M. Krusche, L. Ufer, N. Chrisam, R.C.A. Dubini, F. Gartner, S. Angerpointner, C.F. Dirscherl, P. Rovo, C.B. Mast, J.E. Šponer, C. Ochsenfeld, E. Frey, D. Braun, ChemSystemsChem 5 (2023). date_created: 2024-05-29T06:13:48Z date_published: 2023-01-01T00:00:00Z date_updated: 2025-07-10T11:51:15Z day: '01' ddc: - '530' department: - _id: NMR doi: 10.1002/syst.202200026 file: - access_level: open_access checksum: b1e78c60e371f87bdf43970f17d1cb0b content_type: application/pdf creator: dernst date_created: 2024-07-31T11:20:58Z date_updated: 2024-07-31T11:20:58Z file_id: '17355' file_name: 2023_ChemSystemsChem_Dass.pdf file_size: 860679 relation: main_file success: 1 file_date_updated: 2024-07-31T11:20:58Z fulldoi: https://doi.org/10.1002/syst.202200026 has_accepted_license: '1' intvolume: ' 5' issue: '1' language: - iso: eng month: '01' oa: 1 oa_version: Published Version publication: ChemSystemsChem publication_identifier: issn: - 2570-4206 publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: RNA oligomerisation without added catalyst from 2′,3′‐cyclic nucleotides by drying at air-water interfaces tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 5 year: '2023' ... --- _id: '17079' abstract: - lang: eng text: We study moments of characteristic polynomials of truncated Haar distributed matrices from the three classical compact groups O(N), U(N) and Sp(2N). For finite matrix size we calculate the moments in terms of hypergeometric functions of matrix argument and give explicit integral representations highlighting the duality between the moment and the matrix size as well as the duality between the orthogonal and symplectic cases. Asymptotic expansions in strong and weak non-unitarity regimes are obtained. Using the connection to matrix hypergeometric functions, we establish limit theorems for the log-modulus of the characteristic polynomial evaluated on the unit circle. acknowledgement: N.S. gratefully acknowledges financial support of the Royal Society, grant URF/R1/180707. We would like to thank Emma Bailey, Yan Fyodorov and Jordan Stoyanov for helpful comments an an earlier version of this paper. We are grateful for the comments of an anonymous referee. article_number: '2250049' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Alexander full_name: Serebryakov, Alexander last_name: Serebryakov - first_name: Nick full_name: Simm, Nick last_name: Simm - first_name: Guillaume full_name: Dubach, Guillaume id: D5C6A458-10C4-11EA-ABF4-A4B43DDC885E last_name: Dubach orcid: 0000-0001-6892-8137 citation: ama: 'Serebryakov A, Simm N, Dubach G. Characteristic polynomials of random truncations: Moments, duality and asymptotics. Random Matrices: Theory and Applications. 2023;12(01). doi:10.1142/s2010326322500496' apa: 'Serebryakov, A., Simm, N., & Dubach, G. (2023). Characteristic polynomials of random truncations: Moments, duality and asymptotics. Random Matrices: Theory and Applications. World Scientific Publishing. https://doi.org/10.1142/s2010326322500496' chicago: 'Serebryakov, Alexander, Nick Simm, and Guillaume Dubach. “Characteristic Polynomials of Random Truncations: Moments, Duality and Asymptotics.” Random Matrices: Theory and Applications. World Scientific Publishing, 2023. https://doi.org/10.1142/s2010326322500496.' ieee: 'A. Serebryakov, N. Simm, and G. Dubach, “Characteristic polynomials of random truncations: Moments, duality and asymptotics,” Random Matrices: Theory and Applications, vol. 12, no. 01. World Scientific Publishing, 2023.' ista: 'Serebryakov A, Simm N, Dubach G. 2023. Characteristic polynomials of random truncations: Moments, duality and asymptotics. Random Matrices: Theory and Applications. 12(01), 2250049.' mla: 'Serebryakov, Alexander, et al. “Characteristic Polynomials of Random Truncations: Moments, Duality and Asymptotics.” Random Matrices: Theory and Applications, vol. 12, no. 01, 2250049, World Scientific Publishing, 2023, doi:10.1142/s2010326322500496.' short: 'A. Serebryakov, N. Simm, G. Dubach, Random Matrices: Theory and Applications 12 (2023).' date_created: 2024-05-29T06:14:26Z date_published: 2023-01-01T00:00:00Z date_updated: 2025-09-09T14:27:10Z day: '01' department: - _id: LaEr doi: 10.1142/s2010326322500496 external_id: arxiv: - '2109.10331' isi: - '000848874400001' fulldoi: https://doi.org/10.1142/s2010326322500496 intvolume: ' 12' isi: 1 issue: '01' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2109.10331 month: '01' oa: 1 oa_version: Preprint publication: 'Random Matrices: Theory and Applications' publication_identifier: eissn: - 2010-3271 issn: - 2010-3263 publication_status: published publisher: World Scientific Publishing quality_controlled: '1' scopus_import: '1' status: public title: 'Characteristic polynomials of random truncations: Moments, duality and asymptotics' type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 12 year: '2023' ... --- _id: '17100' abstract: - lang: eng text: "Prophet inequalities are a central object of study in optimal stopping theory. A gambler is sent values online, sampled from an instance of independent distributions, in an adversarial, random or selected order, depending on the model. When observing each value, the gambler either accepts it as a reward or irrevocably rejects it and proceeds to observe the next value. The goal of the gambler, who cannot see the future, is maximising the expected value of the reward while competing against the expectation of a prophet (the offline maximum). In other words, one seeks to maximise the gambler-to-prophet ratio of the expectations.\r\nThe model, in which the gambler selects the arrival order first, and then observes the values, is known as Order Selection. In this model a ratio of 0.7251 has been proved to be attainable for any instance. In very recent work, this has been improved up to 0.7258. If the gambler chooses the arrival order (uniformly) at random, we obtain the Random Order model. The worst case ratio over all possible instances has been extensively studied for at least 40 years. In the recent work aforementioned, through simulations, this ratio has been shown to be at most 0.7254 for the Random Order model, thus establishing for the first time that carefully choosing the order, instead of simply taking it at random, benefits the gambler. We give an alternative, more rigorous proof of this fact, by showing mathematically that in the Random Order model, no algorithm can achieve a ratio larger than 0.7235. This sets a new state-of-the-art hardness for this model, and establishes more formally that there is a real benefit in choosing the order." acknowledgement: This research was partially supported by the EPSRC grant EP/W005573/1, the ERC CoG 863818 (ForM-SMArt) grant, and the ANID Chile grant ACT210005. We would like to thank Jos´e Correa and Bruno Zilotto for their precious advice, and Mona Mohammadi and Roodabeh Safavi for early conversations. article_number: '2304.04024' article_processing_charge: No arxiv: 1 author: - first_name: Giordano full_name: Giambartolomei, Giordano last_name: Giambartolomei - first_name: Frederik Mallmann-Trenn full_name: Frederik Mallmann-Trenn, Frederik Mallmann-Trenn last_name: Frederik Mallmann-Trenn - first_name: Raimundo J full_name: Saona Urmeneta, Raimundo J id: BD1DF4C4-D767-11E9-B658-BC13E6697425 last_name: Saona Urmeneta orcid: 0000-0001-5103-038X citation: ama: 'Giambartolomei G, Frederik Mallmann-Trenn FM-T, Saona Urmeneta RJ. Prophet inequalities: Separating random order from order selection. arXiv. doi:10.48550/arXiv.2304.04024' apa: 'Giambartolomei, G., Frederik Mallmann-Trenn, F. M.-T., & Saona Urmeneta, R. J. (n.d.). Prophet inequalities: Separating random order from order selection. arXiv. https://doi.org/10.48550/arXiv.2304.04024' chicago: 'Giambartolomei, Giordano, Frederik Mallmann-Trenn Frederik Mallmann-Trenn, and Raimundo J Saona Urmeneta. “Prophet Inequalities: Separating Random Order from Order Selection.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2304.04024.' ieee: 'G. Giambartolomei, F. M.-T. Frederik Mallmann-Trenn, and R. J. Saona Urmeneta, “Prophet inequalities: Separating random order from order selection,” arXiv. .' ista: 'Giambartolomei G, Frederik Mallmann-Trenn FM-T, Saona Urmeneta RJ. Prophet inequalities: Separating random order from order selection. arXiv, 2304.04024.' mla: 'Giambartolomei, Giordano, et al. “Prophet Inequalities: Separating Random Order from Order Selection.” ArXiv, 2304.04024, doi:10.48550/arXiv.2304.04024.' short: G. Giambartolomei, F.M.-T. Frederik Mallmann-Trenn, R.J. Saona Urmeneta, ArXiv (n.d.). date_created: 2024-06-03T07:44:54Z date_published: 2023-04-08T00:00:00Z date_updated: 2025-04-14T07:52:47Z day: '08' department: - _id: KrCh doi: 10.48550/arXiv.2304.04024 ec_funded: 1 external_id: arxiv: - '2304.04024' fulldoi: https://doi.org/10.48550/arXiv.2304.04024 language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2304.04024 month: '04' oa: 1 oa_version: Preprint project: - _id: 0599E47C-7A3F-11EA-A408-12923DDC885E call_identifier: H2020 grant_number: '863818' name: 'Formal Methods for Stochastic Models: Algorithms and Applications' publication: arXiv publication_status: submitted status: public title: 'Prophet inequalities: Separating random order from order selection' type: preprint user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2023' ... --- OA_place: publisher OA_type: hybrid _id: '18621' abstract: - lang: eng text: During neural development, cellular adhesion is crucial for interactions among and between neurons and surrounding tissues. This function is mediated by conserved cell adhesion molecules, which are tightly regulated to allow for coordinated neuronal outgrowth. Here, we show that the proprotein convertase KPC-1 (homolog of mammalian furin) regulates the Menorin adhesion complex during development of PVD dendritic arbors in Caenorhabditis elegans. We found a finely regulated antagonistic balance between PVD-expressed KPC-1 and the epidermally expressed putative cell adhesion molecule MNR-1 (Menorin). Genetically, partial loss of mnr-1 suppressed partial loss of kpc-1, and both loss of kpc-1 and transgenic overexpression of mnr-1 resulted in indistinguishable phenotypes in PVD dendrites. This balance regulated cell-surface localization of the DMA-1 leucine-rich transmembrane receptor in PVD neurons. Lastly, kpc-1 mutants showed increased amounts of MNR-1 and decreased amounts of muscle-derived LECT-2 (Chondromodulin II), which is also part of the Menorin adhesion complex. These observations suggest that KPC-1 in PVD neurons directly or indirectly controls the abundance of proteins of the Menorin adhesion complex from adjacent tissues, thereby providing negative feedback from the dendrite to the instructive cues of surrounding tissues. acknowledgement: "We thank members of the Bülow laboratory for comments on the manuscript and discussions throughout the course of this work; and Ryan Peer and William Corman for their initial help with the modifier genetic screen. We acknowledge the Genomics Core facility and the Advanced Imaging Facility at Albert Einstein College of Medicine for help during these studies. We are grateful to Kang Shen, David Miller and the Caenorhabditis Genetics Center (which is funded by National Institutes of Health Office of Research Infrastructure Programs P40OD0104400) for some of the strains used in this study, and Lhisia Chen for the anti-SAX-7 antibody.\r\nThis work was supported by grants from the National Institutes of Health (F31NS100370 to M.R.; T32GM007288 and F31NS111939 to M.T.; R01NS096672, R21NS081505 and R01NS129992 to H.E.B.; and P30HD071593 to Albert Einstein College of Medicine). N.J.R.-S. was the recipient of a Colciencias-Fulbright Fellowship [funded by Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS) and Fulbright Colombia], L.T.H.T. of a Croucher Foundation Fellowship, and H.E.B. of an Irma T. Hirschl Trust/Monique Weill-Caulier Trust research fellowship. Open Access funding provided by Albert Einstein College of Medicine, Yeshiva University. Deposited in PMC for immediate release." article_processing_charge: No article_type: original author: - first_name: Nelson full_name: Ramirez, Nelson id: 39831956-E4FE-11E9-85DE-0DC7E5697425 last_name: Ramirez - first_name: Helen M. full_name: Belalcazar, Helen M. last_name: Belalcazar - first_name: Maisha full_name: Rahman, Maisha last_name: Rahman - first_name: Meera full_name: Trivedi, Meera last_name: Trivedi - first_name: Leo T. H. full_name: Tang, Leo T. H. last_name: Tang - first_name: Hannes E. full_name: Bülow, Hannes E. last_name: Bülow citation: ama: Ramirez N, Belalcazar HM, Rahman M, Trivedi M, Tang LTH, Bülow HE. Convertase-dependent regulation of membrane-tethered and secreted ligands tunes dendrite adhesion. Development. 2023;150(18). doi:10.1242/dev.201208 apa: Ramirez, N., Belalcazar, H. M., Rahman, M., Trivedi, M., Tang, L. T. H., & Bülow, H. E. (2023). Convertase-dependent regulation of membrane-tethered and secreted ligands tunes dendrite adhesion. Development. The Company of Biologists. https://doi.org/10.1242/dev.201208 chicago: Ramirez, Nelson, Helen M. Belalcazar, Maisha Rahman, Meera Trivedi, Leo T. H. Tang, and Hannes E. Bülow. “Convertase-Dependent Regulation of Membrane-Tethered and Secreted Ligands Tunes Dendrite Adhesion.” Development. The Company of Biologists, 2023. https://doi.org/10.1242/dev.201208. ieee: N. Ramirez, H. M. Belalcazar, M. Rahman, M. Trivedi, L. T. H. Tang, and H. E. Bülow, “Convertase-dependent regulation of membrane-tethered and secreted ligands tunes dendrite adhesion,” Development, vol. 150, no. 18. The Company of Biologists, 2023. ista: Ramirez N, Belalcazar HM, Rahman M, Trivedi M, Tang LTH, Bülow HE. 2023. Convertase-dependent regulation of membrane-tethered and secreted ligands tunes dendrite adhesion. Development. 150(18). mla: Ramirez, Nelson, et al. “Convertase-Dependent Regulation of Membrane-Tethered and Secreted Ligands Tunes Dendrite Adhesion.” Development, vol. 150, no. 18, The Company of Biologists, 2023, doi:10.1242/dev.201208. short: N. Ramirez, H.M. Belalcazar, M. Rahman, M. Trivedi, L.T.H. Tang, H.E. Bülow, Development 150 (2023). date_created: 2024-12-04T22:02:52Z date_published: 2023-09-18T00:00:00Z date_updated: 2024-12-09T11:43:40Z day: '18' ddc: - '570' doi: 10.1242/dev.201208 extern: '1' external_id: pmid: - '37721334' file: - access_level: open_access checksum: d2158dc56db50457e6404c4afec4401c content_type: application/pdf creator: nramirez date_created: 2024-12-04T22:12:04Z date_updated: 2024-12-04T22:12:04Z file_id: '18624' file_name: dev201208.pdf file_size: 9559527 relation: main_file success: 1 file_date_updated: 2024-12-04T22:12:04Z fulldoi: https://doi.org/10.1242/dev.201208 has_accepted_license: '1' intvolume: ' 150' issue: '18' language: - iso: eng month: '09' oa: 1 oa_version: Published Version pmid: 1 publication: Development publication_identifier: eissn: - 1477-9129 issn: - 0950-1991 publication_status: published publisher: The Company of Biologists quality_controlled: '1' scopus_import: '1' status: public title: Convertase-dependent regulation of membrane-tethered and secreted ligands tunes dendrite adhesion tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 150 year: '2023' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '18942' abstract: - lang: eng text: Photosynthesis is among the first processes negatively affected by environmental cues and its performance directly determines plant cell fitness and ultimately crop yield. Primarily sites of photosynthesis, chloroplasts are unique sites also for the biosynthesis of precursors of the growth regulator auxin and for sensing environmental stress, but their role in intracellular auxin homeostasis, vital for plant growth and survival in changing environments, remains poorly understood. Here, we identified two ATP-binding cassette (ABC) subfamily B transporters, ABCB28 and ABCB29, which export auxin across the chloroplast envelope to the cytosol in a concerted action in vivo. Moreover, we provide evidence for an auxin biosynthesis pathway in Arabidopsis thaliana chloroplasts. The overexpression of ABCB28 and ABCB29 influenced stomatal regulation and resulted in significantly improved water use efficiency and survival rates during salt and drought stresses. Our results suggest that chloroplast auxin production and transport contribute to stomata regulation for conserving water upon salt stress. ABCB28 and ABCB29 integrate photosynthesis and auxin signals and as such hold great potential to improve the adaptation potential of crops to environmental cues. article_number: '7' article_processing_charge: Yes article_type: original author: - first_name: Prashanth full_name: Tamizhselvan, Prashanth last_name: Tamizhselvan - first_name: Sharmila full_name: Madhavan, Sharmila last_name: Madhavan - first_name: Christian full_name: Constan-Aguilar, Christian last_name: Constan-Aguilar - first_name: Eman Ryad full_name: Elrefaay, Eman Ryad last_name: Elrefaay - first_name: Jie full_name: Liu, Jie last_name: Liu - first_name: Aleš full_name: Pěnčík, Aleš last_name: Pěnčík - first_name: Ondřej full_name: Novák, Ondřej last_name: Novák - first_name: Albert full_name: Cairó, Albert last_name: Cairó - first_name: Mónika full_name: Hrtyan, Mónika id: 45A71A74-F248-11E8-B48F-1D18A9856A87 last_name: Hrtyan - first_name: Markus full_name: Geisler, Markus last_name: Geisler - first_name: Vanesa Beatriz full_name: Tognetti, Vanesa Beatriz last_name: Tognetti citation: ama: Tamizhselvan P, Madhavan S, Constan-Aguilar C, et al. Chloroplast auxin efflux mediated by ABCB28 and ABCB29 fine-tunes salt and drought stress responses in Arabidopsis. Plants. 2023;13(1). doi:10.3390/plants13010007 apa: Tamizhselvan, P., Madhavan, S., Constan-Aguilar, C., Elrefaay, E. R., Liu, J., Pěnčík, A., … Tognetti, V. B. (2023). Chloroplast auxin efflux mediated by ABCB28 and ABCB29 fine-tunes salt and drought stress responses in Arabidopsis. Plants. MDPI. https://doi.org/10.3390/plants13010007 chicago: Tamizhselvan, Prashanth, Sharmila Madhavan, Christian Constan-Aguilar, Eman Ryad Elrefaay, Jie Liu, Aleš Pěnčík, Ondřej Novák, et al. “Chloroplast Auxin Efflux Mediated by ABCB28 and ABCB29 Fine-Tunes Salt and Drought Stress Responses in Arabidopsis.” Plants. MDPI, 2023. https://doi.org/10.3390/plants13010007. ieee: P. Tamizhselvan et al., “Chloroplast auxin efflux mediated by ABCB28 and ABCB29 fine-tunes salt and drought stress responses in Arabidopsis,” Plants, vol. 13, no. 1. MDPI, 2023. ista: Tamizhselvan P, Madhavan S, Constan-Aguilar C, Elrefaay ER, Liu J, Pěnčík A, Novák O, Cairó A, Hrtyan M, Geisler M, Tognetti VB. 2023. Chloroplast auxin efflux mediated by ABCB28 and ABCB29 fine-tunes salt and drought stress responses in Arabidopsis. Plants. 13(1), 7. mla: Tamizhselvan, Prashanth, et al. “Chloroplast Auxin Efflux Mediated by ABCB28 and ABCB29 Fine-Tunes Salt and Drought Stress Responses in Arabidopsis.” Plants, vol. 13, no. 1, 7, MDPI, 2023, doi:10.3390/plants13010007. short: P. Tamizhselvan, S. Madhavan, C. Constan-Aguilar, E.R. Elrefaay, J. Liu, A. Pěnčík, O. Novák, A. Cairó, M. Hrtyan, M. Geisler, V.B. Tognetti, Plants 13 (2023). date_created: 2025-01-29T09:03:56Z date_published: 2023-12-19T00:00:00Z date_updated: 2025-01-29T09:07:53Z day: '19' ddc: - '580' department: - _id: EvBe doi: 10.3390/plants13010007 external_id: pmid: - '38202315' file: - access_level: open_access checksum: 97efcefa8151d69343b0b641630c86ee content_type: application/pdf creator: dernst date_created: 2025-01-29T09:06:51Z date_updated: 2025-01-29T09:06:51Z file_id: '18943' file_name: 2023_Plants_Tamizhselvan.pdf file_size: 6231778 relation: main_file success: 1 file_date_updated: 2025-01-29T09:06:51Z fulldoi: https://doi.org/10.3390/plants13010007 has_accepted_license: '1' intvolume: ' 13' issue: '1' language: - iso: eng month: '12' oa: 1 oa_version: Published Version pmid: 1 publication: Plants publication_identifier: eissn: - 2223-7747 publication_status: published publisher: MDPI quality_controlled: '1' scopus_import: '1' status: public title: Chloroplast auxin efflux mediated by ABCB28 and ABCB29 fine-tunes salt and drought stress responses in Arabidopsis tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 13 year: '2023' ... --- _id: '18959' abstract: - lang: eng text: This workshop continues a series of workshops whose current format originated in 1981 under then-organizers Moser and Zehnder, and whose latest iteration took place in July 2023. The general goal of this series of workshops is to discuss the latest developments in the field of dynamical systems, broadly construed, and its connections with neighboring areas of mathematics such as differential geometry, partial differential equations, and more recently contact and symplectic geometry. We continued this tradition, bringing in new participants working in areas of dynamical systems and its connections with other areas of mathematics that are currently highly active and/or showing great promise for future development. Key focus areas for the 2023 workshop include spectral rigidity for planar domains, chaotic and oscillatory motions in celestial mechanics, conformal symplectic dynamics, and relations between dynamics.he workshop by the grant DMS-2230648, “US Junior Oberwolfach Fellows”. acknowledgement: The MFO and the workshop organizers would like to thank the National Science Foundation for supporting the participation of junior researchers in the workshop by the grant DMS-2230648, “US Junior Oberwolfach Fellows”. article_processing_charge: No article_type: original author: - first_name: Marie-Claude full_name: Arnaud, Marie-Claude last_name: Arnaud - first_name: Michael full_name: Hutchings, Michael last_name: Hutchings - first_name: Vadim full_name: Kaloshin, Vadim id: FE553552-CDE8-11E9-B324-C0EBE5697425 last_name: Kaloshin orcid: 0000-0002-6051-2628 citation: ama: Arnaud M-C, Hutchings M, Kaloshin V. Dynamische Systeme. Oberwolfach Reports. 2023;20(3):1671-1730. doi:10.4171/owr/2023/30 apa: Arnaud, M.-C., Hutchings, M., & Kaloshin, V. (2023). Dynamische Systeme. Oberwolfach Reports. EMS Press. https://doi.org/10.4171/owr/2023/30 chicago: Arnaud, Marie-Claude, Michael Hutchings, and Vadim Kaloshin. “Dynamische Systeme.” Oberwolfach Reports. EMS Press, 2023. https://doi.org/10.4171/owr/2023/30. ieee: M.-C. Arnaud, M. Hutchings, and V. Kaloshin, “Dynamische Systeme,” Oberwolfach Reports, vol. 20, no. 3. EMS Press, pp. 1671–1730, 2023. ista: Arnaud M-C, Hutchings M, Kaloshin V. 2023. Dynamische Systeme. Oberwolfach Reports. 20(3), 1671–1730. mla: Arnaud, Marie-Claude, et al. “Dynamische Systeme.” Oberwolfach Reports, vol. 20, no. 3, EMS Press, 2023, pp. 1671–730, doi:10.4171/owr/2023/30. short: M.-C. Arnaud, M. Hutchings, V. Kaloshin, Oberwolfach Reports 20 (2023) 1671–1730. date_created: 2025-01-29T13:19:15Z date_published: 2023-07-09T00:00:00Z date_updated: 2025-01-29T13:23:15Z day: '09' department: - _id: VaKa doi: 10.4171/owr/2023/30 fulldoi: https://doi.org/10.4171/owr/2023/30 intvolume: ' 20' issue: '3' language: - iso: eng month: '07' oa_version: None page: 1671-1730 publication: Oberwolfach Reports publication_identifier: eissn: - 1660-8941 issn: - 1660-8933 publication_status: published publisher: EMS Press quality_controlled: '1' status: public title: Dynamische Systeme type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 20 year: '2023' ... --- OA_place: repository OA_type: green _id: '19053' abstract: - lang: eng text: Building on previous works by Bilu, Chambert-Loir and Loeser, we study the asymptotic behaviour of the moduli space of sections of a given family over a smooth projective curve, assuming that the generic fiber is an equivariant compactification of a finite dimensional vector space. Working in a suitable Grothendieck ring of varieties, we show that the class of these moduli spaces converges, modulo an adequate normalisation, to a non-zero effective element, when the class of the sections goes arbitrary far from the boundary of the dual of the effective cone. The limit can be interpreted as a motivic Euler product in the sense of Bilu’s thesis. This result provides a positive answer to a motivic version of the Batyrev–Manin–Peyre conjectures in this particular setting. acknowledgement: I am grateful to Emmanuel Peyre for his help, reading and useful comments throughout the drafting process of this article. I am also very indebted to Margaret Bilu for all the constructions and properties that I used in this paper and which are due to her, especially those concerning the motivic Euler product, as well as for enlightening discussions and remarks on an earlier version of this work. I thank the anonymous referee for his/her remarks and suggestions that helped me to enhance the clarity of the exposition. article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Loïs full_name: Faisant, Loïs id: 26ca6926-5797-11ee-9232-f8b51bd19631 last_name: Faisant citation: ama: Faisant L. Geometric Batyrev–Manin–Peyre for equivariant compactifications of additive groups. Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry. 2023;64(3):783-850. doi:10.1007/s13366-022-00656-w apa: Faisant, L. (2023). Geometric Batyrev–Manin–Peyre for equivariant compactifications of additive groups. Beiträge Zur Algebra Und Geometrie / Contributions to Algebra and Geometry. Springer Nature. https://doi.org/10.1007/s13366-022-00656-w chicago: Faisant, Loïs. “Geometric Batyrev–Manin–Peyre for Equivariant Compactifications of Additive Groups.” Beiträge Zur Algebra Und Geometrie / Contributions to Algebra and Geometry. Springer Nature, 2023. https://doi.org/10.1007/s13366-022-00656-w. ieee: L. Faisant, “Geometric Batyrev–Manin–Peyre for equivariant compactifications of additive groups,” Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, vol. 64, no. 3. Springer Nature, pp. 783–850, 2023. ista: Faisant L. 2023. Geometric Batyrev–Manin–Peyre for equivariant compactifications of additive groups. Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry. 64(3), 783–850. mla: Faisant, Loïs. “Geometric Batyrev–Manin–Peyre for Equivariant Compactifications of Additive Groups.” Beiträge Zur Algebra Und Geometrie / Contributions to Algebra and Geometry, vol. 64, no. 3, Springer Nature, 2023, pp. 783–850, doi:10.1007/s13366-022-00656-w. short: L. Faisant, Beiträge Zur Algebra Und Geometrie / Contributions to Algebra and Geometry 64 (2023) 783–850. date_created: 2025-02-18T13:32:39Z date_published: 2023-09-01T00:00:00Z date_updated: 2025-02-24T10:50:30Z day: '01' doi: 10.1007/s13366-022-00656-w extern: '1' external_id: arxiv: - '2106.11898' fulldoi: https://doi.org/10.1007/s13366-022-00656-w intvolume: ' 64' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.2106.11898' month: '09' oa: 1 oa_version: Preprint page: 783-850 publication: Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry publication_identifier: eissn: - 2191-0383 issn: - 0138-4821 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Geometric Batyrev–Manin–Peyre for equivariant compactifications of additive groups type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 64 year: '2023' ... --- OA_place: repository OA_type: green _id: '19471' abstract: - lang: eng text: 'Fasting initiates a multitude of adaptations to allow survival. Activation of the hypothalamic–pituitary–adrenal (HPA) axis and subsequent release of glucocorticoid hormones is a key response that mobilizes fuel stores to meet energy demands1,2,3,4,5. Despite the importance of the HPA axis response, the neural mechanisms that drive its activation during energy deficit are unknown. Here, we show that fasting-activated hypothalamic agouti-related peptide (AgRP)-expressing neurons trigger and are essential for fasting-induced HPA axis activation. AgRP neurons do so through projections to the paraventricular hypothalamus (PVH), where, in a mechanism not previously described for AgRP neurons, they presynaptically inhibit the terminals of tonically active GABAergic afferents from the bed nucleus of the stria terminalis (BNST) that otherwise restrain activity of corticotrophin-releasing hormone (CRH)-expressing neurons. This disinhibition of PVHCrh neurons requires γ-aminobutyric acid (GABA)/GABA-B receptor signalling and potently activates the HPA axis. Notably, stimulation of the HPA axis by AgRP neurons is independent of their induction of hunger, showing that these canonical ‘hunger neurons’ drive many distinctly different adaptations to the fasted state. Together, our findings identify the neural basis for fasting-induced HPA axis activation and uncover a unique means by which AgRP neurons activate downstream neurons: through presynaptic inhibition of GABAergic afferents. Given the potency of this disinhibition of tonically active BNST afferents, other activators of the HPA axis, such as psychological stress, may also work by reducing BNST inhibitory tone onto PVHCrh neurons.' article_processing_charge: No article_type: original author: - first_name: Amelia May Barnett full_name: Douglass, Amelia May Barnett id: de5f6fda-80fb-11ef-996f-a8c4ecd8e289 last_name: Douglass orcid: 0000-0001-5398-6473 - first_name: Jon M. full_name: Resch, Jon M. last_name: Resch - first_name: Joseph C. full_name: Madara, Joseph C. last_name: Madara - first_name: Hakan full_name: Kucukdereli, Hakan last_name: Kucukdereli - first_name: Ofer full_name: Yizhar, Ofer last_name: Yizhar - first_name: Abhinav full_name: Grama, Abhinav last_name: Grama - first_name: Masahito full_name: Yamagata, Masahito last_name: Yamagata - first_name: Zongfang full_name: Yang, Zongfang last_name: Yang - first_name: Bradford B. full_name: Lowell, Bradford B. last_name: Lowell citation: ama: Douglass AM, Resch JM, Madara JC, et al. Neural basis for fasting activation of the hypothalamic–pituitary–adrenal axis. Nature. 2023;620(7972):154-162. doi:10.1038/s41586-023-06358-0 apa: Douglass, A. M., Resch, J. M., Madara, J. C., Kucukdereli, H., Yizhar, O., Grama, A., … Lowell, B. B. (2023). Neural basis for fasting activation of the hypothalamic–pituitary–adrenal axis. Nature. Springer Nature. https://doi.org/10.1038/s41586-023-06358-0 chicago: Douglass, Amelia M., Jon M. Resch, Joseph C. Madara, Hakan Kucukdereli, Ofer Yizhar, Abhinav Grama, Masahito Yamagata, Zongfang Yang, and Bradford B. Lowell. “Neural Basis for Fasting Activation of the Hypothalamic–Pituitary–Adrenal Axis.” Nature. Springer Nature, 2023. https://doi.org/10.1038/s41586-023-06358-0. ieee: A. M. Douglass et al., “Neural basis for fasting activation of the hypothalamic–pituitary–adrenal axis,” Nature, vol. 620, no. 7972. Springer Nature, pp. 154–162, 2023. ista: Douglass AM, Resch JM, Madara JC, Kucukdereli H, Yizhar O, Grama A, Yamagata M, Yang Z, Lowell BB. 2023. Neural basis for fasting activation of the hypothalamic–pituitary–adrenal axis. Nature. 620(7972), 154–162. mla: Douglass, Amelia M., et al. “Neural Basis for Fasting Activation of the Hypothalamic–Pituitary–Adrenal Axis.” Nature, vol. 620, no. 7972, Springer Nature, 2023, pp. 154–62, doi:10.1038/s41586-023-06358-0. short: A.M. Douglass, J.M. Resch, J.C. Madara, H. Kucukdereli, O. Yizhar, A. Grama, M. Yamagata, Z. Yang, B.B. Lowell, Nature 620 (2023) 154–162. date_created: 2025-04-03T12:28:51Z date_published: 2023-08-03T00:00:00Z date_updated: 2025-07-10T11:51:40Z day: '03' doi: 10.1038/s41586-023-06358-0 extern: '1' external_id: pmid: - '37495689 ' fulldoi: https://doi.org/10.1038/s41586-023-06358-0 intvolume: ' 620' issue: '7972' language: - iso: eng main_file_link: - open_access: '1' url: https://pmc.ncbi.nlm.nih.gov/articles/PMC11168300/ month: '08' oa: 1 oa_version: Submitted Version page: 154-162 pmid: 1 publication: Nature publication_identifier: eissn: - 1476-4687 issn: - 0028-0836 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Neural basis for fasting activation of the hypothalamic–pituitary–adrenal axis type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 620 year: '2023' ... --- OA_place: repository OA_type: green _id: '19487' abstract: - lang: eng text: "Fix a non-square integer \U0001D458≠0. We show that the number of curves \U0001D438\U0001D435:\U0001D466^2=\U0001D465^3+\U0001D458\U0001D435^2 containing an integral point, where B ranges over positive integers less than N, is bounded by ≪\U0001D458\U0001D441(log\U0001D441)−1/2+\U0001D716. In particular, this implies that the number of positive integers \U0001D435≤\U0001D441 such that −3\U0001D458\U0001D435^2 is the discriminant of an elliptic curve over \U0001D444 is o(N). The proof involves a discriminant-lowering procedure on integral binary cubic forms." article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Yik Tung full_name: Chan, Yik Tung id: c4c0afc8-9262-11ed-9231-d8b0bc743af1 last_name: Chan orcid: 0000-0001-8467-4106 citation: ama: Chan S. Integral points on cubic twists of Mordell curves. Mathematische Annalen. 2023;388(3):2275-2288. doi:10.1007/s00208-023-02578-x apa: Chan, S. (2023). Integral points on cubic twists of Mordell curves. Mathematische Annalen. Springer Nature. https://doi.org/10.1007/s00208-023-02578-x chicago: Chan, Stephanie. “Integral Points on Cubic Twists of Mordell Curves.” Mathematische Annalen. Springer Nature, 2023. https://doi.org/10.1007/s00208-023-02578-x. ieee: S. Chan, “Integral points on cubic twists of Mordell curves,” Mathematische Annalen, vol. 388, no. 3. Springer Nature, pp. 2275–2288, 2023. ista: Chan S. 2023. Integral points on cubic twists of Mordell curves. Mathematische Annalen. 388(3), 2275–2288. mla: Chan, Stephanie. “Integral Points on Cubic Twists of Mordell Curves.” Mathematische Annalen, vol. 388, no. 3, Springer Nature, 2023, pp. 2275–88, doi:10.1007/s00208-023-02578-x. short: S. Chan, Mathematische Annalen 388 (2023) 2275–2288. date_created: 2025-04-05T10:50:37Z date_published: 2023-02-07T00:00:00Z date_updated: 2025-07-10T11:51:45Z day: '07' doi: 10.1007/s00208-023-02578-x extern: '1' external_id: arxiv: - '2203.11366' fulldoi: https://doi.org/10.1007/s00208-023-02578-x intvolume: ' 388' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2203.11366 month: '02' oa: 1 oa_version: Preprint page: 2275-2288 publication: Mathematische Annalen publication_identifier: eissn: - 1432-1807 issn: - 0025-5831 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Integral points on cubic twists of Mordell curves type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 388 year: '2023' ... --- OA_place: repository OA_type: green _id: '19803' abstract: - lang: eng text: "Eu⁢Cd2⁢P2 is notable for its unconventional transport: upon cooling the metallic resistivity changes slope and begins to increase, ultimately 100-fold, before returning to its metallic value. Surprisingly, this giant peak occurs at 18 K, well above the Néel temperature (\U0001D447\U0001D441) of 11.5 K. Using a suite of sensitive probes of magnetism, including resonant x-ray scattering and magneto-optical polarimetry, we have discovered that ferromagnetic order onsets above \U0001D447\U0001D441 in the temperature range of the resistivity peak. The observation of inverted hysteresis in this regime shows that ferromagnetism is promoted by coupling of localized spins and itinerant carriers. The resulting carrier localization is confirmed by optical conductivity measurements." article_number: '144404' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Veronika full_name: Sunko, Veronika id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3 last_name: Sunko orcid: 0000-0003-2724-3523 - first_name: Y. full_name: Sun, Y. last_name: Sun - first_name: M. full_name: Vranas, M. last_name: Vranas - first_name: C. C. full_name: Homes, C. C. last_name: Homes - first_name: C. full_name: Lee, C. last_name: Lee - first_name: E. full_name: Donoway, E. last_name: Donoway - first_name: Z.-C. full_name: Wang, Z.-C. last_name: Wang - first_name: S. full_name: Balguri, S. last_name: Balguri - first_name: M. B. full_name: Mahendru, M. B. last_name: Mahendru - first_name: A. full_name: Ruiz, A. last_name: Ruiz - first_name: B. full_name: Gunn, B. last_name: Gunn - first_name: R. full_name: Basak, R. last_name: Basak - first_name: S. full_name: Blanco-Canosa, S. last_name: Blanco-Canosa - first_name: E. full_name: Schierle, E. last_name: Schierle - first_name: E. full_name: Weschke, E. last_name: Weschke - first_name: F. full_name: Tafti, F. last_name: Tafti - first_name: A. full_name: Frano, A. last_name: Frano - first_name: J. full_name: Orenstein, J. last_name: Orenstein citation: ama: Sunko V, Sun Y, Vranas M, et al. Spin-carrier coupling induced ferromagnetism and giant resistivity peak in EuCd2P2. Physical Review B. 2023;107(14). doi:10.1103/physrevb.107.144404 apa: Sunko, V., Sun, Y., Vranas, M., Homes, C. C., Lee, C., Donoway, E., … Orenstein, J. (2023). Spin-carrier coupling induced ferromagnetism and giant resistivity peak in EuCd2P2. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.107.144404 chicago: Sunko, Veronika, Y. Sun, M. Vranas, C. C. Homes, C. Lee, E. Donoway, Z.-C. Wang, et al. “Spin-Carrier Coupling Induced Ferromagnetism and Giant Resistivity Peak in EuCd2P2.” Physical Review B. American Physical Society, 2023. https://doi.org/10.1103/physrevb.107.144404. ieee: V. Sunko et al., “Spin-carrier coupling induced ferromagnetism and giant resistivity peak in EuCd2P2,” Physical Review B, vol. 107, no. 14. American Physical Society, 2023. ista: Sunko V, Sun Y, Vranas M, Homes CC, Lee C, Donoway E, Wang Z-C, Balguri S, Mahendru MB, Ruiz A, Gunn B, Basak R, Blanco-Canosa S, Schierle E, Weschke E, Tafti F, Frano A, Orenstein J. 2023. Spin-carrier coupling induced ferromagnetism and giant resistivity peak in EuCd2P2. Physical Review B. 107(14), 144404. mla: Sunko, Veronika, et al. “Spin-Carrier Coupling Induced Ferromagnetism and Giant Resistivity Peak in EuCd2P2.” Physical Review B, vol. 107, no. 14, 144404, American Physical Society, 2023, doi:10.1103/physrevb.107.144404. short: V. Sunko, Y. Sun, M. Vranas, C.C. Homes, C. Lee, E. Donoway, Z.-C. Wang, S. Balguri, M.B. Mahendru, A. Ruiz, B. Gunn, R. Basak, S. Blanco-Canosa, E. Schierle, E. Weschke, F. Tafti, A. Frano, J. Orenstein, Physical Review B 107 (2023). date_created: 2025-06-10T09:08:40Z date_published: 2023-04-04T00:00:00Z date_updated: 2025-06-10T11:02:42Z day: '04' doi: 10.1103/physrevb.107.144404 extern: '1' external_id: arxiv: - '2208.05499' fulldoi: https://doi.org/10.1103/physrevb.107.144404 intvolume: ' 107' issue: '14' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2208.05499 month: '04' oa: 1 oa_version: Preprint publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Spin-carrier coupling induced ferromagnetism and giant resistivity peak in EuCd2P2 type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 107 year: '2023' ... --- OA_place: publisher OA_type: hybrid _id: '19821' abstract: - lang: eng text: "The adiabatic elastocaloric effect measures the temperature change of a given system with strain and provides a thermodynamic probe of the entropic landscape in the temperature-strain space. Here, we demonstrate that the DC bias strain-dependence of AC elastocaloric effect allows decomposition of the latter into symmetric (rotation-symmetry-preserving) and antisymmetric (rotation-symmetry-breaking) strain channels, using a tetragonal \r\n-electron intermetallic DyB2C2—whose antiferroquadrupolar order breaks local fourfold rotational symmetries while globally remaining tetragonal—as a showcase example. We capture the strain evolution of its quadrupolar and magnetic phase transitions using both singularities in the elastocaloric coefficient and its jumps at the transitions, and the latter we show follows a modified Ehrenfest relation. We find that antisymmetric strain couples to the underlying order parameter in a biquadratic (linear-quadratic) manner in the antiferroquadrupolar (canted antiferromagnetic) phase, which are attributed to a preserved (broken) global tetragonal symmetry, respectively. The broken tetragonal symmetry in the magnetic phase is further evidenced by elastocaloric strain-hysteresis and optical birefringence. Additionally, within the staggered quadrupolar order, the observed elastocaloric response reflects a quadratic increase of entropy with antisymmetric strain, analogous to the role magnetic field plays for Ising antiferromagnetic orders by promoting pseudospin flips. Our results demonstrate AC elastocaloric effect as a compact and incisive thermodynamic probe into the coupling between electronic degrees of freedom and strain in free energy, which holds the potential for investigating and understanding the symmetry of a wide variety of ordered phases in broader classes of quantum materials." article_number: e2302800120 article_processing_charge: No article_type: original author: - first_name: Linda full_name: Ye, Linda last_name: Ye - first_name: Yue full_name: Sun, Yue last_name: Sun - first_name: Veronika full_name: Sunko, Veronika id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3 last_name: Sunko orcid: 0000-0003-2724-3523 - first_name: Joaquin F. full_name: Rodriguez-Nieva, Joaquin F. last_name: Rodriguez-Nieva - first_name: Matthias S. full_name: Ikeda, Matthias S. last_name: Ikeda - first_name: Thanapat full_name: Worasaran, Thanapat last_name: Worasaran - first_name: Matthew E. full_name: Sorensen, Matthew E. last_name: Sorensen - first_name: Maja D. full_name: Bachmann, Maja D. last_name: Bachmann - first_name: Joseph full_name: Orenstein, Joseph last_name: Orenstein - first_name: Ian R. full_name: Fisher, Ian R. last_name: Fisher citation: ama: Ye L, Sun Y, Sunko V, et al. Elastocaloric signatures of symmetric and antisymmetric strain-tuning of quadrupolar and magnetic phases in DyB2C2. Proceedings of the National Academy of Sciences. 2023;120(35). doi:10.1073/pnas.2302800120 apa: Ye, L., Sun, Y., Sunko, V., Rodriguez-Nieva, J. F., Ikeda, M. S., Worasaran, T., … Fisher, I. R. (2023). Elastocaloric signatures of symmetric and antisymmetric strain-tuning of quadrupolar and magnetic phases in DyB2C2. Proceedings of the National Academy of Sciences. National Academy of Sciences. https://doi.org/10.1073/pnas.2302800120 chicago: Ye, Linda, Yue Sun, Veronika Sunko, Joaquin F. Rodriguez-Nieva, Matthias S. Ikeda, Thanapat Worasaran, Matthew E. Sorensen, Maja D. Bachmann, Joseph Orenstein, and Ian R. Fisher. “Elastocaloric Signatures of Symmetric and Antisymmetric Strain-Tuning of Quadrupolar and Magnetic Phases in DyB2C2.” Proceedings of the National Academy of Sciences. National Academy of Sciences, 2023. https://doi.org/10.1073/pnas.2302800120. ieee: L. Ye et al., “Elastocaloric signatures of symmetric and antisymmetric strain-tuning of quadrupolar and magnetic phases in DyB2C2,” Proceedings of the National Academy of Sciences, vol. 120, no. 35. National Academy of Sciences, 2023. ista: Ye L, Sun Y, Sunko V, Rodriguez-Nieva JF, Ikeda MS, Worasaran T, Sorensen ME, Bachmann MD, Orenstein J, Fisher IR. 2023. Elastocaloric signatures of symmetric and antisymmetric strain-tuning of quadrupolar and magnetic phases in DyB2C2. Proceedings of the National Academy of Sciences. 120(35), e2302800120. mla: Ye, Linda, et al. “Elastocaloric Signatures of Symmetric and Antisymmetric Strain-Tuning of Quadrupolar and Magnetic Phases in DyB2C2.” Proceedings of the National Academy of Sciences, vol. 120, no. 35, e2302800120, National Academy of Sciences, 2023, doi:10.1073/pnas.2302800120. short: L. Ye, Y. Sun, V. Sunko, J.F. Rodriguez-Nieva, M.S. Ikeda, T. Worasaran, M.E. Sorensen, M.D. Bachmann, J. Orenstein, I.R. Fisher, Proceedings of the National Academy of Sciences 120 (2023). date_created: 2025-06-10T09:20:12Z date_published: 2023-08-29T00:00:00Z date_updated: 2025-06-10T13:13:53Z day: '29' ddc: - '530' doi: 10.1073/pnas.2302800120 extern: '1' external_id: pmid: - '37607225' fulldoi: https://doi.org/10.1073/pnas.2302800120 has_accepted_license: '1' intvolume: ' 120' issue: '35' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1073/pnas.2302800120 month: '08' oa: 1 oa_version: Published Version pmid: 1 publication: Proceedings of the National Academy of Sciences publication_identifier: eissn: - 1091-6490 issn: - 0027-8424 publication_status: published publisher: National Academy of Sciences quality_controlled: '1' scopus_import: '1' status: public title: Elastocaloric signatures of symmetric and antisymmetric strain-tuning of quadrupolar and magnetic phases in DyB2C2 tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 120 year: '2023' ... --- OA_place: publisher OA_type: hybrid _id: '19828' abstract: - lang: eng text: 'We describe an optical method to directly measure the position-dependent thermal diffusivity of reflective single crystal samples across a broad range of temperatures for condensed matter physics research. Two laser beams are used, one as a source to locally modulate the sample temperature, and the other as a probe of sample reflectivity, which is a function of the modulated temperature. Thermal diffusivity is obtained from the phase delay between source and probe signals. We combine this technique with a microscope setup in an optical cryostat, in which the sample is placed on a three-axis piezo-stage, allowing for spatially resolved measurements. Furthermore, we demonstrate experimentally and mathematically that isotropic in-plane diffusivity can be obtained when overlapping the two laser beams instead of separating them in the traditional way, which further enhances the spatial resolution to a micron scale, especially valuable when studying inhomogeneous or multidomain samples. We discuss in detail the experimental conditions under which this technique is valuable and demonstrate its performance on two stoichiometric bilayer ruthenates: Sr3Ru2O7 and Ca3Ru2O7. The spatial resolution allowed us to study the diffusivity in single domains of the latter, and we uncovered a temperature-dependent in-plane diffusivity anisotropy. Finally, we used the enhanced spatial resolution enabled by overlapping the two beams to measure the temperature-dependent diffusivity of Ti-doped Ca3Ru2O7, which exhibits a metal–insulator transition. We observed large variations of transition temperature over the same sample, originating from doping inhomogeneity and pointing to the power of spatially resolved techniques in accessing inherent properties.' article_number: '043003' article_processing_charge: Yes (in subscription journal) article_type: original arxiv: 1 author: - first_name: F. full_name: Sun, F. last_name: Sun - first_name: S. full_name: Mishra, S. last_name: Mishra - first_name: P. H. full_name: McGuinness, P. H. last_name: McGuinness - first_name: Z. H. full_name: Filipiak, Z. H. last_name: Filipiak - first_name: I. full_name: Marković, I. last_name: Marković - first_name: D. A. full_name: Sokolov, D. A. last_name: Sokolov - first_name: N. full_name: Kikugawa, N. last_name: Kikugawa - first_name: J. W. full_name: Orenstein, J. W. last_name: Orenstein - first_name: S. A. full_name: Hartnoll, S. A. last_name: Hartnoll - first_name: A. P. full_name: Mackenzie, A. P. last_name: Mackenzie - first_name: Veronika full_name: Sunko, Veronika id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3 last_name: Sunko orcid: 0000-0003-2724-3523 citation: ama: Sun F, Mishra S, McGuinness PH, et al. A spatially resolved optical method to measure thermal diffusivity. Review of Scientific Instruments. 2023;94(4). doi:10.1063/5.0098800 apa: Sun, F., Mishra, S., McGuinness, P. H., Filipiak, Z. H., Marković, I., Sokolov, D. A., … Sunko, V. (2023). A spatially resolved optical method to measure thermal diffusivity. Review of Scientific Instruments. AIP Publishing. https://doi.org/10.1063/5.0098800 chicago: Sun, F., S. Mishra, P. H. McGuinness, Z. H. Filipiak, I. Marković, D. A. Sokolov, N. Kikugawa, et al. “A Spatially Resolved Optical Method to Measure Thermal Diffusivity.” Review of Scientific Instruments. AIP Publishing, 2023. https://doi.org/10.1063/5.0098800. ieee: F. Sun et al., “A spatially resolved optical method to measure thermal diffusivity,” Review of Scientific Instruments, vol. 94, no. 4. AIP Publishing, 2023. ista: Sun F, Mishra S, McGuinness PH, Filipiak ZH, Marković I, Sokolov DA, Kikugawa N, Orenstein JW, Hartnoll SA, Mackenzie AP, Sunko V. 2023. A spatially resolved optical method to measure thermal diffusivity. Review of Scientific Instruments. 94(4), 043003. mla: Sun, F., et al. “A Spatially Resolved Optical Method to Measure Thermal Diffusivity.” Review of Scientific Instruments, vol. 94, no. 4, 043003, AIP Publishing, 2023, doi:10.1063/5.0098800. short: F. Sun, S. Mishra, P.H. McGuinness, Z.H. Filipiak, I. Marković, D.A. Sokolov, N. Kikugawa, J.W. Orenstein, S.A. Hartnoll, A.P. Mackenzie, V. Sunko, Review of Scientific Instruments 94 (2023). date_created: 2025-06-10T09:23:29Z date_published: 2023-04-10T00:00:00Z date_updated: 2025-06-11T06:14:06Z day: '10' ddc: - '530' doi: 10.1063/5.0098800 extern: '1' external_id: arxiv: - '2303.02017' pmid: - '38081228' fulldoi: https://doi.org/10.1063/5.0098800 has_accepted_license: '1' intvolume: ' 94' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1063/5.0098800 month: '04' oa: 1 oa_version: Published Version pmid: 1 publication: Review of Scientific Instruments publication_identifier: eissn: - 1089-7623 issn: - 0034-6748 publication_status: published publisher: AIP Publishing quality_controlled: '1' related_material: link: - relation: erratum url: https://doi.org/10.1063/5.0195810 scopus_import: '1' status: public title: A spatially resolved optical method to measure thermal diffusivity tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 94 year: '2023' ... --- OA_place: repository OA_type: green _id: '20572' abstract: - lang: eng text: "We present an elementary non-recursive formula for the multivariate moments\r\nof the Dirichlet distribution on the standard simplex, in terms of the pattern\r\ninventory of the moments' exponents. We obtain analog formulas for the\r\nmultivariate moments of the Dirichlet-Ferguson and Gamma measures. We further\r\nintroduce a polychromatic analogue of Ewens sampling formula on colored integer\r\npartitions, discuss its relation with suitable extensions of Hoppe's urn model\r\nand of the Chinese restaurant process, and prove that it satisfies an adapted\r\nnotion of consistency in the sense of Kingman." acknowledgement: This research was funded by the Austrian Science Fund (FWF) ESPRIT 208. For the purpose of open access, the authors have applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission. F.Q. gratefully acknowledges support by the Austrian Science Fund (FWF), Project SFB F65. The authors are grateful to Professor Nathanaël Berestycki for several helpful suggestions, and to Nicola Battisti and Dr. Elizabeth Hollwey for enlightening discussions on DNA-methylation. article_number: '2309.11292' article_processing_charge: No arxiv: 1 author: - first_name: Lorenzo full_name: Dello Schiavo, Lorenzo id: ECEBF480-9E4F-11EA-B557-B0823DDC885E last_name: Dello Schiavo orcid: 0000-0002-9881-6870 - first_name: Filippo full_name: Quattrocchi, Filippo id: 3ebd6ba8-edfb-11eb-afb5-91a9745ba308 last_name: Quattrocchi orcid: 0009-0000-9773-1931 citation: ama: Dello Schiavo L, Quattrocchi F. Multivariate Dirichlet moments and a polychromatic Ewens sampling formula. arXiv. doi:10.48550/arXiv.2309.11292 apa: Dello Schiavo, L., & Quattrocchi, F. (n.d.). Multivariate Dirichlet moments and a polychromatic Ewens sampling formula. arXiv. https://doi.org/10.48550/arXiv.2309.11292 chicago: Dello Schiavo, Lorenzo, and Filippo Quattrocchi. “Multivariate Dirichlet Moments and a Polychromatic Ewens Sampling Formula.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2309.11292. ieee: L. Dello Schiavo and F. Quattrocchi, “Multivariate Dirichlet moments and a polychromatic Ewens sampling formula,” arXiv. . ista: Dello Schiavo L, Quattrocchi F. Multivariate Dirichlet moments and a polychromatic Ewens sampling formula. arXiv, 2309.11292. mla: Dello Schiavo, Lorenzo, and Filippo Quattrocchi. “Multivariate Dirichlet Moments and a Polychromatic Ewens Sampling Formula.” ArXiv, 2309.11292, doi:10.48550/arXiv.2309.11292. short: L. Dello Schiavo, F. Quattrocchi, ArXiv (n.d.). corr_author: '1' date_created: 2025-10-28T13:13:08Z date_published: 2023-09-20T00:00:00Z date_updated: 2025-11-24T13:53:48Z day: '20' department: - _id: GradSch - _id: JaMa doi: 10.48550/arXiv.2309.11292 external_id: arxiv: - '2309.11292' fulldoi: https://doi.org/10.48550/arXiv.2309.11292 keyword: - Dirichlet distribution - Ewens sampling formula - Hoppe urn model - colored partitions language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2309.11292 month: '09' oa: 1 oa_version: Preprint project: - _id: 34dbf174-11ca-11ed-8bc3-afe9d43d4b9c grant_number: E208 name: Configuration Spaces over Non-Smooth Spaces - _id: 260482E2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: F06504 name: Taming Complexity in Partial Differential Systems publication: arXiv publication_status: draft status: public title: Multivariate Dirichlet moments and a polychromatic Ewens sampling formula type: preprint user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2023' ... --- OA_place: repository OA_type: green _id: '20624' abstract: - lang: eng text: We describe a sequence of smooth quotients of the Deligne-Mumford moduli space ${\mathbb R}\overline{\mathcal M}_{0,\ell+1}$ of real rational curves with $\ell\!+\!1$ conjugate pairs of marked points that terminates at ${\mathbb R}\overline{\mathcal M}_{0,\ell}\!\times\!{\mathbb C}{\mathbb P}^1$. This produces an analogue of Keel's blowup construction of the Deligne-Mumford moduli spaces $\overline{\mathcal M}_{\ell+1}$ of rational curves with $\ell\!+\!1$ marked points, but with an explicit description of the intermediate spaces and the blowups of three different types. The same framework readily adapts to the real moduli spaces with real points. In a sequel, we use this inductive construction of ${\mathbb R}\overline{\mathcal M}_{0,\ell+1}$ to completely determine the rational (co)homology ring of ${\mathbb R}\overline{\mathcal M}_{0,\ell}$. article_number: '2305.08811' article_processing_charge: No arxiv: 1 author: - first_name: Xujia full_name: Chen, Xujia id: 968ad14a-fd86-11ee-a420-ea29715511a3 last_name: Chen - first_name: Aleksey full_name: Zinger, Aleksey last_name: Zinger citation: ama: Chen X, Zinger A. Blowdowns of the Deligne-Mumford spaces of real rational curves. arXiv. doi:10.48550/ARXIV.2305.08811 apa: Chen, X., & Zinger, A. (n.d.). Blowdowns of the Deligne-Mumford spaces of real rational curves. arXiv. https://doi.org/10.48550/ARXIV.2305.08811 chicago: Chen, Xujia, and Aleksey Zinger. “Blowdowns of the Deligne-Mumford Spaces of Real Rational Curves.” ArXiv, n.d. https://doi.org/10.48550/ARXIV.2305.08811. ieee: X. Chen and A. Zinger, “Blowdowns of the Deligne-Mumford spaces of real rational curves,” arXiv. . ista: Chen X, Zinger A. Blowdowns of the Deligne-Mumford spaces of real rational curves. arXiv, 2305.08811. mla: Chen, Xujia, and Aleksey Zinger. “Blowdowns of the Deligne-Mumford Spaces of Real Rational Curves.” ArXiv, 2305.08811, doi:10.48550/ARXIV.2305.08811. short: X. Chen, A. Zinger, ArXiv (n.d.). date_created: 2025-11-10T08:45:42Z date_published: 2023-05-15T00:00:00Z date_updated: 2025-11-10T15:06:21Z day: '15' doi: 10.48550/ARXIV.2305.08811 extern: '1' external_id: arxiv: - '2305.08811' fulldoi: https://doi.org/10.48550/ARXIV.2305.08811 language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2305.08811 month: '05' oa: 1 oa_version: Preprint publication: arXiv publication_status: submitted status: public title: Blowdowns of the Deligne-Mumford spaces of real rational curves type: preprint user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2023' ... --- OA_place: repository OA_type: green _id: '20625' abstract: - lang: eng text: It is a long-established and heavily-used fact that the integral cohomology ring of the Deligne-Mumford moduli space of (complex) rational curves is the polynomial ring on the boundary divisors modulo the ideal generated by the obvious geometric relations between them. We show that the rational cohomology ring of the Deligne-Mumford moduli space of real rational curves with conjugate marked points only is the polynomial ring on certain (``complex") boundary divisors and real boundary hypersurfaces modulo the ideal generated by the obvious geometric relations between them and the geometric relation in positive dimension and codimension identified in a previous paper. article_number: '2305.08798' article_processing_charge: No arxiv: 1 author: - first_name: Xujia full_name: Chen, Xujia id: 968ad14a-fd86-11ee-a420-ea29715511a3 last_name: Chen - first_name: Penka full_name: Georgieva, Penka last_name: Georgieva - first_name: Aleksey full_name: Zinger, Aleksey last_name: Zinger citation: ama: Chen X, Georgieva P, Zinger A. The cohomology ring of the Deligne-Mumford moduli space of real rational curves with conjugate marked points. arXiv. doi:10.48550/ARXIV.2305.08798 apa: Chen, X., Georgieva, P., & Zinger, A. (n.d.). The cohomology ring of the Deligne-Mumford moduli space of real rational curves with conjugate marked points. arXiv. https://doi.org/10.48550/ARXIV.2305.08798 chicago: Chen, Xujia, Penka Georgieva, and Aleksey Zinger. “The Cohomology Ring of the Deligne-Mumford Moduli Space of Real Rational Curves with Conjugate Marked Points.” ArXiv, n.d. https://doi.org/10.48550/ARXIV.2305.08798. ieee: X. Chen, P. Georgieva, and A. Zinger, “The cohomology ring of the Deligne-Mumford moduli space of real rational curves with conjugate marked points,” arXiv. . ista: Chen X, Georgieva P, Zinger A. The cohomology ring of the Deligne-Mumford moduli space of real rational curves with conjugate marked points. arXiv, 2305.08798. mla: Chen, Xujia, et al. “The Cohomology Ring of the Deligne-Mumford Moduli Space of Real Rational Curves with Conjugate Marked Points.” ArXiv, 2305.08798, doi:10.48550/ARXIV.2305.08798. short: X. Chen, P. Georgieva, A. Zinger, ArXiv (n.d.). date_created: 2025-11-10T08:46:11Z date_published: 2023-05-15T00:00:00Z date_updated: 2025-11-10T15:05:04Z day: '15' doi: 10.48550/ARXIV.2305.08798 extern: '1' external_id: arxiv: - '2305.08798' fulldoi: https://doi.org/10.48550/ARXIV.2305.08798 language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2305.08798 month: '05' oa: 1 oa_version: Preprint publication: arXiv publication_status: submitted status: public title: The cohomology ring of the Deligne-Mumford moduli space of real rational curves with conjugate marked points type: preprint user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2023' ... --- OA_place: repository OA_type: green _id: '20626' abstract: - lang: eng text: 'Kontsevich''s characteristic classes are invariants of framed smooth fiber bundles with homology sphere fibers. It was shown by Watanabe that they can be used to distinguish smooth $S^4$-bundles that are all trivial as topological fiber bundles. In this article we show that this ability of Kontsevich''s classes is a manifestation of the following principle: the ``real blow-up'''' construction on a smooth manifold essentially depends on its smooth structure and thus, given a smooth manifold (or smooth fiber bundle) $M$, the topological invariants of spaces constructed from $M$ by real blow-ups could potentially differentiate smooth structures on $M$. The main theorem says that Kontsevich''s characteristic classes of a smooth framed bundle $π$ are determined by the topology of the 2-point configuration space bundle of $π$ and framing data.' article_number: '2302.03021' article_processing_charge: No arxiv: 1 author: - first_name: Xujia full_name: Chen, Xujia id: 968ad14a-fd86-11ee-a420-ea29715511a3 last_name: Chen citation: ama: Chen X. Kontsevich’s characteristic classes as topological invariants of configuration space bundles. arXiv. doi:10.48550/ARXIV.2302.03021 apa: Chen, X. (n.d.). Kontsevich’s characteristic classes as topological invariants of configuration space bundles. arXiv. https://doi.org/10.48550/ARXIV.2302.03021 chicago: Chen, Xujia. “Kontsevich’s Characteristic Classes as Topological Invariants of Configuration Space Bundles.” ArXiv, n.d. https://doi.org/10.48550/ARXIV.2302.03021. ieee: X. Chen, “Kontsevich’s characteristic classes as topological invariants of configuration space bundles,” arXiv. . ista: Chen X. Kontsevich’s characteristic classes as topological invariants of configuration space bundles. arXiv, 2302.03021. mla: Chen, Xujia. “Kontsevich’s Characteristic Classes as Topological Invariants of Configuration Space Bundles.” ArXiv, 2302.03021, doi:10.48550/ARXIV.2302.03021. short: X. Chen, ArXiv (n.d.). date_created: 2025-11-10T08:46:37Z date_published: 2023-02-06T00:00:00Z date_updated: 2025-11-10T15:00:28Z day: '06' doi: 10.48550/ARXIV.2302.03021 extern: '1' external_id: arxiv: - '2302.03021' fulldoi: https://doi.org/10.48550/ARXIV.2302.03021 language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2302.03021 month: '02' oa: 1 oa_version: Preprint publication: arXiv publication_status: submitted status: public title: Kontsevich's characteristic classes as topological invariants of configuration space bundles type: preprint user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2023' ... --- OA_type: closed access _id: '20759' abstract: - lang: eng text: Recent advances in single-atom insertion reactions have opened up new synthetic approaches for molecular diversification. Developing innovative strategies to directly transform biologically relevant molecules, without any prefunctionalization, is key to further expanding the scope and utility of such transformations. Herein, the direct access to quinazolines and pyrimidines from the corresponding unprotected 1H-indoles and 1H-pyrroles is reported, relying on the implementation of lithium bis(trimethylsilyl)amide (LiHMDS) as a novel nitrogen atom source in combination with commercially available hypervalent iodine reagents. Further application of this strategy in late-stage settings demonstrates its potential in lead structure diversification campaigns. article_processing_charge: No article_type: letter_note author: - first_name: Julia full_name: Reisenbauer, Julia id: 51d862e9-36ee-11f0-86d3-8534c85a5496 last_name: Reisenbauer - first_name: Ann-Sophie K. full_name: Paschke, Ann-Sophie K. last_name: Paschke - first_name: Jelena full_name: Krizic, Jelena last_name: Krizic - first_name: Bence B. full_name: Botlik, Bence B. last_name: Botlik - first_name: Patrick full_name: Finkelstein, Patrick last_name: Finkelstein - first_name: Bill full_name: Morandi, Bill last_name: Morandi citation: ama: Reisenbauer J, Paschke A-SK, Krizic J, Botlik BB, Finkelstein P, Morandi B. Direct access to quinazolines and pyrimidines from unprotected indoles and pyrroles through nitrogen atom insertion. Organic Letters. 2023;25(47):8419-8423. doi:10.1021/acs.orglett.3c03264 apa: Reisenbauer, J., Paschke, A.-S. K., Krizic, J., Botlik, B. B., Finkelstein, P., & Morandi, B. (2023). Direct access to quinazolines and pyrimidines from unprotected indoles and pyrroles through nitrogen atom insertion. Organic Letters. American Chemical Society. https://doi.org/10.1021/acs.orglett.3c03264 chicago: Reisenbauer, Julia, Ann-Sophie K. Paschke, Jelena Krizic, Bence B. Botlik, Patrick Finkelstein, and Bill Morandi. “Direct Access to Quinazolines and Pyrimidines from Unprotected Indoles and Pyrroles through Nitrogen Atom Insertion.” Organic Letters. American Chemical Society, 2023. https://doi.org/10.1021/acs.orglett.3c03264. ieee: J. Reisenbauer, A.-S. K. Paschke, J. Krizic, B. B. Botlik, P. Finkelstein, and B. Morandi, “Direct access to quinazolines and pyrimidines from unprotected indoles and pyrroles through nitrogen atom insertion,” Organic Letters, vol. 25, no. 47. American Chemical Society, pp. 8419–8423, 2023. ista: Reisenbauer J, Paschke A-SK, Krizic J, Botlik BB, Finkelstein P, Morandi B. 2023. Direct access to quinazolines and pyrimidines from unprotected indoles and pyrroles through nitrogen atom insertion. Organic Letters. 25(47), 8419–8423. mla: Reisenbauer, Julia, et al. “Direct Access to Quinazolines and Pyrimidines from Unprotected Indoles and Pyrroles through Nitrogen Atom Insertion.” Organic Letters, vol. 25, no. 47, American Chemical Society, 2023, pp. 8419–23, doi:10.1021/acs.orglett.3c03264. short: J. Reisenbauer, A.-S.K. Paschke, J. Krizic, B.B. Botlik, P. Finkelstein, B. Morandi, Organic Letters 25 (2023) 8419–8423. date_created: 2025-12-09T14:23:23Z date_published: 2023-11-20T00:00:00Z date_updated: 2025-12-16T11:07:40Z day: '20' doi: 10.1021/acs.orglett.3c03264 extern: '1' external_id: pmid: - '37983173' fulldoi: https://doi.org/10.1021/acs.orglett.3c03264 intvolume: ' 25' issue: '47' language: - iso: eng month: '11' oa_version: None page: 8419-8423 pmid: 1 publication: Organic Letters publication_identifier: eissn: - 1523-7052 issn: - 1523-7060 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Direct access to quinazolines and pyrimidines from unprotected indoles and pyrroles through nitrogen atom insertion type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 25 year: '2023' ... --- OA_place: publisher OA_type: hybrid PlanS_conform: '1' _id: '20760' abstract: - lang: eng text: The implementation of HCN-free transfer hydrocyanation reactions on laboratory scales has recently been achieved by using HCN donor reagents under nickel- and Lewis acid co-catalysis. More recently, malononitrile-based HCN donor reagents were shown to undergo the C(sp3)–CN bond activation by the nickel catalyst in the absence of Lewis acids. However, there is a lack of detailed mechanistic understanding of the challenging C(sp3)–CN bond cleavage step. In this work, in-depth kinetic and computational studies using alkynes as substrates were used to elucidate the overall reaction mechanism of this transfer hydrocyanation, with a particular focus on the activation of the C(sp3)–CN bond to generate the active H–Ni–CN transfer hydrocyanation catalyst. Comparisons of experimentally and computationally derived 13C kinetic isotope effect data support a direct oxidative addition mechanism of the nickel catalyst into the C(sp3)–CN bond facilitated by the coordination of the second nitrile group to the nickel catalyst. article_processing_charge: Yes (in subscription journal) article_type: original author: - first_name: Julia full_name: Reisenbauer, Julia id: 51d862e9-36ee-11f0-86d3-8534c85a5496 last_name: Reisenbauer - first_name: Patrick full_name: Finkelstein, Patrick last_name: Finkelstein - first_name: Marc-Olivier full_name: Ebert, Marc-Olivier last_name: Ebert - first_name: Bill full_name: Morandi, Bill last_name: Morandi citation: ama: Reisenbauer J, Finkelstein P, Ebert M-O, Morandi B. Mechanistic investigation of the nickel-catalyzed transfer hydrocyanation of alkynes. ACS Catalysis. 2023;13(17):11548-11555. doi:10.1021/acscatal.3c02977 apa: Reisenbauer, J., Finkelstein, P., Ebert, M.-O., & Morandi, B. (2023). Mechanistic investigation of the nickel-catalyzed transfer hydrocyanation of alkynes. ACS Catalysis. American Chemical Society. https://doi.org/10.1021/acscatal.3c02977 chicago: Reisenbauer, Julia, Patrick Finkelstein, Marc-Olivier Ebert, and Bill Morandi. “Mechanistic Investigation of the Nickel-Catalyzed Transfer Hydrocyanation of Alkynes.” ACS Catalysis. American Chemical Society, 2023. https://doi.org/10.1021/acscatal.3c02977. ieee: J. Reisenbauer, P. Finkelstein, M.-O. Ebert, and B. Morandi, “Mechanistic investigation of the nickel-catalyzed transfer hydrocyanation of alkynes,” ACS Catalysis, vol. 13, no. 17. American Chemical Society, pp. 11548–11555, 2023. ista: Reisenbauer J, Finkelstein P, Ebert M-O, Morandi B. 2023. Mechanistic investigation of the nickel-catalyzed transfer hydrocyanation of alkynes. ACS Catalysis. 13(17), 11548–11555. mla: Reisenbauer, Julia, et al. “Mechanistic Investigation of the Nickel-Catalyzed Transfer Hydrocyanation of Alkynes.” ACS Catalysis, vol. 13, no. 17, American Chemical Society, 2023, pp. 11548–55, doi:10.1021/acscatal.3c02977. short: J. Reisenbauer, P. Finkelstein, M.-O. Ebert, B. Morandi, ACS Catalysis 13 (2023) 11548–11555. date_created: 2025-12-09T14:23:42Z date_published: 2023-08-16T00:00:00Z date_updated: 2025-12-16T11:11:14Z day: '16' doi: 10.1021/acscatal.3c02977 extern: '1' external_id: pmid: - '37671177' fulldoi: https://doi.org/10.1021/acscatal.3c02977 has_accepted_license: '1' intvolume: ' 13' issue: '17' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1021/acscatal.3c02977 month: '08' oa: 1 oa_version: Published Version page: 11548-11555 pmid: 1 publication: ACS Catalysis publication_identifier: eissn: - 2155-5435 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Mechanistic investigation of the nickel-catalyzed transfer hydrocyanation of alkynes tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 13 year: '2023' ...