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X-ORIGINAL-URL:https://crc326gaus.de
X-WR-CALDESC:Events for CRC 326 - GAUS
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20211105T133000
DTEND;TZID=Europe/Berlin:20211105T150000
DTSTAMP:20211102T152219Z
CREATED:20211029T111130Z
LAST-MODIFIED:20211102T152219Z
UID:1851-1636119000-1636124400@crc326gaus.de
SUMMARY:Georg Tamme (Universität Mainz): Purity in chromatically localized algebraic K-theory
DESCRIPTION:In classical algebra\, the prime fields are Q and for every prime number p the finite field F_p. In higher algebra\, one has for every prime number p an additional sequence of prime fields K(p\,n)\, n a natural number\, which in some sense interpolates between Q and F_p. Associated with these prime fields one has corresponding localization and completion functors. An interesting question\, raised by Waldhausen and Ausoni—Rognes\, is how these functors interact with algebraic K-theory. In the talk I will first give an introduction and discuss a purity result for algebraic K-theory with respect to these completion functors. This is based on joint work with Markus Land\, Akhil Mathew\, and Lennart Meier and on closely related work of Dustin Clausen\, Akhil Mathew\, Niko Naumann\, and Justin Noel.
URL:https://crc326gaus.de/event/georg-tamme-universitat-mainz-purity-in-chromatically-localized-algebraic-k-theory/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Christian Dahlhausen":MAILTO:cdahlhausen@mathi.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20211029T133000
DTEND;TZID=Europe/Berlin:20211029T150000
DTSTAMP:20211028T185036Z
CREATED:20211022T151455Z
LAST-MODIFIED:20211028T185036Z
UID:1779-1635514200-1635519600@crc326gaus.de
SUMMARY:Thomas Geisser (Rikkyo University Tokyo): Duality for motivic cohomology over local fields and applications to class field theory
DESCRIPTION:We give an outline of a (conjectural) construction of cohomology groups for smooth and proper varieties over local fields with values in the derived category of locally compact groups satisfying a Pontryagin duality.\nFor certain weights\, we give an ad hoc construction which satisfies such a duality unconditionally. We then explain how this leads to good class field theory for smooth and proper varieties and relate it to known results.
URL:https://crc326gaus.de/event/thomas-geisser-rikkyo-university-tokyo-duality-for-motivic-cohomology-over-local-fields-and-applications-to-class-field-theory/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20211022T133000
DTEND;TZID=Europe/Berlin:20211022T150000
DTSTAMP:20211013T093734Z
CREATED:20211008T140820Z
LAST-MODIFIED:20211013T093734Z
UID:1698-1634909400-1634914800@crc326gaus.de
SUMMARY:Grigory Andreychev (Universität Bonn): Descent on Analytic Adic Spaces via Condensed Mathematics
DESCRIPTION:In this talk\, I am going to explain the main results of my recent preprint (arXiv:2105.12591). The primary goal will be to prove that for every affinoid analytic adic space $X$\, pseudocoherent complexes\, perfect complexes\, and finite projective modules over $\mathcal{O}_X(X)$ form a stack with respect to the analytic topology on $X$. The proof relies on the new approach to analytic geometry developed by Clausen and Scholze by means of condensed mathematics; therefore\, I will also explain how to apply their formalism of condensed analytic rings to the study of adic geometry.
URL:https://crc326gaus.de/event/perfect-complexes-on-analytic-adic-spaces/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Christian Dahlhausen":MAILTO:cdahlhausen@mathi.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20211020T160000
DTEND;TZID=Europe/Berlin:20211020T170000
DTSTAMP:20211014T163712Z
CREATED:20210917T162417Z
LAST-MODIFIED:20211014T163712Z
UID:1481-1634745600-1634749200@crc326gaus.de
SUMMARY:Remi Reboulet
DESCRIPTION:Remi Reboulet (Université Grenoble Alpes) \ntba
URL:https://crc326gaus.de/event/remi-reboulet/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210804T160000
DTEND;TZID=Europe/Berlin:20210804T170000
DTSTAMP:20210917T165233Z
CREATED:20210915T002904Z
LAST-MODIFIED:20210917T165233Z
UID:1365-1628092800-1628096400@crc326gaus.de
SUMMARY:Xuesen Na
DESCRIPTION:Xuesen Na (University of Maryland) \nLimiting configuration of SU(1\,2) Higgs bundles \nAbstract: The moduli space of Higgs bundles\, or the space of solutions of Hitchin equations has been a focus of intensive studies in algebraic geometry\, symplectic geometry and topology. Recently the asymptotics near the ends of the moduli space has been investigated by studying behavior of solutions for (E\,t\Phi) as $t\to\infty$ by Mazzeo et al (2014)\, Mochizuki (2016) and Fredrickson (2018) for some cases of SL(n\,C) Higgs bundles.\nIn this talk I will present a new result of the limiting behavior of solutions SU(1\,2) Hitchin equation\, as a first step of extending the study to the G-Higgs bundle with G a real rank-one Lie group. The proof relies on construction of approximate solutions by gluing local models on disks to decoupled solutions which converge to limiting configuration after appropriate scaling. A by-product of the study is an explicit description of spectral data of generic SU(1\,2) Higgs bundle by Hecke transformations. \nZoom details: \nhttps://uni-frankfurt.zoom.us/j/94748325596?pwd=NnM1VklLc1c2YXdHclMva2wwTzcrQT09\n\n\nMeeting-ID: 947 4832 5596\nPasscode: 176149\n\n  \n 
URL:https://crc326gaus.de/event/gaus-seminar-xuesen-na/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210714T160000
DTEND;TZID=Europe/Berlin:20210714T170000
DTSTAMP:20210917T165407Z
CREATED:20210915T001958Z
LAST-MODIFIED:20210917T165407Z
UID:1354-1626278400-1626282000@crc326gaus.de
SUMMARY:Fabio Bernasconi
DESCRIPTION:GAUS-Seminar talk by Fabio Bernasconi (University of Utah) \nLog liftability for del Pezzo surfaces and applications to singularities in positive characteristic \nAbstract: In a recent work with Arvidsson and Lacini\, we proved a liftability result to characteristic zero for singular del Pezzo surfaces over perfect fields of characteristic $p>5$. I will explain exactly what notion of liftability we use for singular surfaces (and pairs)\, and I will sketch some parts of the proof.\nFrom this\, I will explain the importance of this result for positive characteristic birational geometry: we prove a Kawamata-Viehweg vanishing theorem for such surfaces that I successively used\, in a work with Kollár\, to deduce properties of singularities of klt threefolds and new liftability results for threefolds Mori fibre spaces in positive characteristic. \nZoom details: \nhttps://uni-frankfurt.zoom.us/j/95464396687?pwd=eno5NGpQdHBmVFlaT1pBU0xlcG15Zz09 \nMeeting ID: 954 6439 6687\nPasscode: 813167
URL:https://crc326gaus.de/event/gaus-seminar-fabio-bernasconi/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20210706T150000
DTEND;TZID=Europe/Berlin:20210706T160000
DTSTAMP:20210917T164925Z
CREATED:20210915T010114Z
LAST-MODIFIED:20210917T164925Z
UID:1371-1625583600-1625587200@crc326gaus.de
SUMMARY:International Seminar on Automorphic Forms
DESCRIPTION:Lennart Gehrmann (University of Duisburg-Essen) \nRigid meromorphic cocycles for orthogonal groups \nAbstract: I will talk about a generalization of Darmon and Vonk’s notion of rigid meromorphic cocycles to the setting of orthogonal groups. After giving an overview over the general setting I will discuss the case of orthogonal groups attached to quadratic spaces of signature (3\,1) in more detail. This is joint work with Henri Darmon and Mike Lipnowski.
URL:https://crc326gaus.de/event/international-seminar-on-automorphic-forms-lennart-gehrmann/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
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