BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CRC 326 - GAUS - ECPv6.15.20//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:CRC 326 - GAUS
X-ORIGINAL-URL:https://crc326gaus.de
X-WR-CALDESC:Events for CRC 326 - GAUS
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Berlin
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20220327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20221030T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20230326T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20231029T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240131T131500
DTEND;TZID=Europe/Berlin:20240131T170000
DTSTAMP:20260423T161908
CREATED:20240116T122759Z
LAST-MODIFIED:20240116T122759Z
UID:7589-1706706900-1706720400@crc326gaus.de
SUMMARY:Anabelian geometry
DESCRIPTION:13:15 – 14:15 Talk 10: Amine Koubaa (Goethe Universität Frankfurt): SC over fields of finite type: main theorems \n14:30 – 15:30 Talk 11: Tim Holzschuh (Universität Heidelberg): Birational liftability: intro \n16:00 – 17:00 Talk 12: Leonie Scherer (Goethe Universität Frankfurt): Birational liftability: main tool
URL:https://crc326gaus.de/event/anabelian-geometry-6/
LOCATION:Heidelberg\, MATHEMATIKON\, SR A\, Deutschland
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240130T160000
DTEND;TZID=Europe/Berlin:20240130T170000
DTSTAMP:20260423T161908
CREATED:20231009T105559Z
LAST-MODIFIED:20240123T160326Z
UID:6420-1706630400-1706634000@crc326gaus.de
SUMMARY:Six-dimensional sphere packing and linear programming
DESCRIPTION:International Seminar on Automorphic Forms \nMatthew de Courcy-Ireland (Stockholm University) \nThis talk is based on joint work with Maria Dostert and Maryna Viazovska. We prove that the Cohn–Elkies linear programming bound is not sharp for sphere packing in dimension 6. This is in contrast to Viazovska’s sharp bound in dimension 8\, even though it is believed that closely related lattices achieve the optimal densities in both dimensions. The proof uses modular forms to construct feasible points in a dual program\, generalizing a construction of Cohn and Triantafillou to the case of odd weight and non-trivial Dirichlet character. Non-sharpness of linear programming is demonstrated by comparing this dual bound to a stronger upper bound obtained from semidefinite programming by Cohn\, de Laat\, and Salmon. Our construction has vanishing Fourier coefficients along an arithmetic progression\, which can be explained using skew self-adjointness of Hecke operators. \nYou can join the Zoom meeting at https://tu-darmstadt.zoom.us/j/68048280736 \nThe password is the first Fourier coefficient of the modular j-function (as digits).
URL:https://crc326gaus.de/event/tba-71/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240126T160000
DTEND;TZID=Europe/Berlin:20240126T170000
DTSTAMP:20260423T161908
CREATED:20231221T132521Z
LAST-MODIFIED:20240123T144823Z
UID:7519-1706284800-1706288400@crc326gaus.de
SUMMARY:Category of matroids with coefficients
DESCRIPTION:TGiF-Seminar: Tropical geometry in Frankfurt (Second meeting Winter Semester 2023/24) \nCancelled: postponed to February 02 \nManoel Zanoelo Jarra (Universität Groningen) \nAbstract: Matroids are combinatorial abstractions of the concept of independence in linear algebra. There is a way back: when representing a matroid over a field we get a linear subspace. Another algebraic object for which we can represent matroids is the semifield of tropical numbers\, which gives us valuated matroids. In this talk we introduce Baker-Bowler’s theory of matroids with coefficients\, which recovers both classical and valuated matroids\, as well linear subspaces\, and we show how to give a categorical treatment to these objects that respects matroidal constructions\, as minors and duality. This is a joint work with Oliver Lorscheid and Eduardo Vital.
URL:https://crc326gaus.de/event/tba-95/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240126T153000
DTEND;TZID=Europe/Berlin:20240126T170000
DTSTAMP:20260423T161908
CREATED:20231016T111405Z
LAST-MODIFIED:20240117T141441Z
UID:6706-1706283000-1706288400@crc326gaus.de
SUMMARY:Doing geometry by counting points
DESCRIPTION:Seminar on Arithmetic Geometry \nPaul Ziegler (TU Darmstadt) \nFor a family of polynomials in several variables with integral coefficients\, the Weil conjectures give a surprising relationship between the geometry of the complex-valued roots of these polynomials and the number of roots of these polynomials “modulo p”. I will give an introduction to this circle of results and an application motivated by the concept of mirror symmetry from physics. \nZoom (635 7328 0984\, Password: smallest six digit prime).
URL:https://crc326gaus.de/event/tba-90/
LOCATION:Darmstadt\, Room 244 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Sabrina Pauli":MAILTO:pauli@mathematik.tu-darmstadt.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240126T143000
DTEND;TZID=Europe/Berlin:20240126T153000
DTSTAMP:20260423T161908
CREATED:20240108T113933Z
LAST-MODIFIED:20240123T144642Z
UID:7541-1706279400-1706283000@crc326gaus.de
SUMMARY:Hard Lefschetz theorem and Hodge-Riemann relations for convex valuations
DESCRIPTION:TGiF-Seminar: Tropical geometry in Frankfurt (Second meeting Winter Semester 2023/24) \nCancelled: postponed to February 02 \nAndreas Bernig (Goethe-Universität Frankfurt) \nAbstract: The hard Lefschetz theorem and the Hodge-Riemann relations have their origin in the cohomology theory of compact Kähler manifolds. In recent years it has become clear that similar results hold in many different settings\, in particular in algebraic geometry and combinatorics (work by Adiprasito\, Huh and others). In a recent joint work with Jan Kotrbatý and Thomas Wannerer\, we prove the hard Lefschetz theorem and Hodge-Riemann relations for valuations on convex bodies. These results can be translated into an array of quadratic inequalities for mixed volumes of smooth convex bodies\, giving a smooth analogue of the quadratic inequalities in McMullen’s polytope algebra. Surprinsingly\, these inequalities fail for general convex bodies. Our proof uses elliptic operators and perturbation theory of unbounded operators.
URL:https://crc326gaus.de/event/hard-lefschetz-theorem-and-hodge-riemann-relations-for-convex-valuations/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240126T101500
DTEND;TZID=Europe/Berlin:20240126T114500
DTSTAMP:20260423T161908
CREATED:20231121T124951Z
LAST-MODIFIED:20240110T141537Z
UID:7185-1706264100-1706269500@crc326gaus.de
SUMMARY:Exodromy
DESCRIPTION:Alisa Kannen (Universität Mainz): Stratified higher topoi
URL:https://crc326gaus.de/event/exodromy-12/
LOCATION:Mainz\, Raum 05-514
CATEGORIES:GAUS-AG
ORGANIZER;CN="Tom Bachmann":MAILTO:tom.bachmann@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240126T091500
DTEND;TZID=Europe/Berlin:20240126T104500
DTSTAMP:20260423T161908
CREATED:20240110T134027Z
LAST-MODIFIED:20240110T134027Z
UID:7568-1706260500-1706265900@crc326gaus.de
SUMMARY:Rigid meromorphic cocycles
DESCRIPTION:Oğuz Gezmiş (Universität Heidelberg): The RM values of the Dedekind–Rademacher cocycle
URL:https://crc326gaus.de/event/rigid-meromorphic-cocycles-11/
LOCATION:Heidelberg\, Mathematikon\, SR 8 und Zoom\, Germany
CATEGORIES:GAUS-AG
ORGANIZER;CN="O%C4%9Fuz Gezmi%C5%9F":MAILTO:oguz.gezmis@iwr.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240125T170000
DTEND;TZID=Europe/Berlin:20240125T180000
DTSTAMP:20260423T161908
CREATED:20231012T090458Z
LAST-MODIFIED:20240514T072156Z
UID:6654-1706202000-1706205600@crc326gaus.de
SUMMARY:CRC-Colloquium
DESCRIPTION:15:30 Uhr Ben Heuer (Universität Frankfurt): p-adic non-abelian Hodge theory for non-p-adic mathematicians\n16:30 Coffee and Cake\n17:00 Uhr Jan Bruinier (TU Darmstadt): Theta functions in geometry and arithmetic\n18:30 Uhr: Dinner \nAbstract B. Heuer:\nIn p-adic non-abelian Hodge theory\, we study p-adic representations of fundamental groups of projective varieties. This talk will give an introduction to this subject without assuming any background in p-adic geometry. Based on examples\, I will explain the “p-adic Simpson correspondence”\, with an emphasis on the relation to complex geometry. I will discuss recent advances\, the main open questions in the area\, and potential applications to complex geometry. \nAbstract J. Brunier:\nWe explain how theta functions can be used to study positive definite quadratic forms and their representation numbers. For indefinite quadratic forms\, Kudla and Millson showed that there are analogous theta functions relating the geometry of special cycles on locally symmetric spaces to modular forms. Conjectures of Kudla predict similar results for arithmetic special cycles in Arakelov Chow groups on integral models of orthogonal Shimura varieties. We will also report on some recent results in this context. \nZoom Meeting-ID: 967 5163 9626 \nPasscode: last name of famous mathematician born in Königsberg (small letters)
URL:https://crc326gaus.de/event/tba-79/
LOCATION:Mainz\, Raum 05-426
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240125T110000
DTEND;TZID=Europe/Berlin:20240125T130000
DTSTAMP:20260423T161908
CREATED:20231010T133151Z
LAST-MODIFIED:20231120T155459Z
UID:6541-1706180400-1706187600@crc326gaus.de
SUMMARY:Emerton-Gee-Stacks
DESCRIPTION:Talk 11: Thibaud van den Hove (TU Darmstadt): Crystalline Stacks
URL:https://crc326gaus.de/event/emerton-gee-stacks-11/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240123T140000
DTEND;TZID=Europe/Berlin:20240123T150000
DTSTAMP:20260423T161908
CREATED:20231220T150741Z
LAST-MODIFIED:20231220T151059Z
UID:7510-1706018400-1706022000@crc326gaus.de
SUMMARY:Étale cohomology of the moduli stack of rank 2 vector bundles on the Fargues-Fontaine curve
DESCRIPTION:Seminar: Non-archimedean geometry \nRuth Wild (Universität Bonn) \nAbstract: Motivated by classical calculations\, we consider the problem of calculating the etale cohomology of the moduli stack Bun2 of rank 2 vector bundles on the Fargues-Fontaine curve\, as introduced by Fargues and Scholze in their geometrization of the Local Langlands correspondence. We achive this by analyzing a stratafication of this stack and the simple cohomological behavior of the different strata. Along the way\, we prove the description of the dualizing sheaf on Bun2.
URL:https://crc326gaus.de/event/etale-cohomology-of-the-moduli-stack-of-rank-2-vector-bundles-on-the-fargues-fontaine-curve/
LOCATION:Frankfurt\, Rober-Mayer-Str. 10\, Raum 711 klein
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240123T090000
DTEND;TZID=Europe/Berlin:20240123T100000
DTSTAMP:20260423T161908
CREATED:20231009T105405Z
LAST-MODIFIED:20240109T101527Z
UID:6417-1706000400-1706004000@crc326gaus.de
SUMMARY:The BZSV duality and the relative Langlands program
DESCRIPTION:International Seminar on Automorphic Forms \nWee Teck Gan (National University of Singapore) \nI will discuss a duality of Hamiltonian group varieties proposed in a recent preprint of Ben-Zvi\, Sakellaridis and Venkatesh\, which gives a new paradigm for the relative Langlands program.\nI will then discuss a joint work with Bryan Wang on instances of this duality for certain Hamiltonian varieties which quantize to generalized Whittaker models. \nYou can join the Zoom meeting at https://tu-darmstadt.zoom.us/j/68048280736 \nThe password is the first Fourier coefficient of the modular j-function (as digits).
URL:https://crc326gaus.de/event/tba-70/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240119T153000
DTEND;TZID=Europe/Berlin:20240119T170000
DTSTAMP:20260423T161908
CREATED:20231016T111231Z
LAST-MODIFIED:20240112T073106Z
UID:6704-1705678200-1705683600@crc326gaus.de
SUMMARY:Enumerating motivic nearby cycles
DESCRIPTION:Seminar on Arithmetic Geometry \nRan Azouri (Sorbonne Paris North University) \nA^1 homotopy theory provides tools to refine geometric invariants on integers to quadratic forms. A key such invariant is the quadratic Euler characteristic; Ayoub’s motivic nearby cycles provide a tool to study singularities in the world of A^1 homotopy.\nIn the talk I will explain how to compute the quadratic Euler characteristic on the motivic nearby cycles spectrum around certain singularities\, using an explicit semistable reduction construction. This\, together with a work of Levine\, Pepin Lehalleur and Srinivas\, adds up to a quadratic conductor formula on schemes with semi-quasihomogeneous singularities\, refining formulas of Milnor and Deligne.\nLater I will describe how\, in a work in progress with Emil Jacobsen\, we use a similar semistable reduction argument to compute the motivic monodromy on nearby cycles\, generalising to motives the Picard-Lefschetz formula of Deligne and Katz. \nZoom (635 7328 0984\, Password: smallest six digit prime).
URL:https://crc326gaus.de/event/tba-89/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Sabrina Pauli":MAILTO:pauli@mathematik.tu-darmstadt.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240119T140000
DTEND;TZID=Europe/Berlin:20240119T180000
DTSTAMP:20260423T161908
CREATED:20231123T090322Z
LAST-MODIFIED:20231123T090429Z
UID:7232-1705672800-1705687200@crc326gaus.de
SUMMARY:Conformal Field Theory
DESCRIPTION:14:00-15:00: Britta Spät (University of Wuppertal): On the McKay Conjecture \n15:15-16:15: Ida Zadeh (Johannes Gutenberg University Mainz): Mathieu Moonshine and T4/Z3 sigma-models \n17:00-18:00: David Reutter (University of Hamburg): A braided tensor 2-category from link homology
URL:https://crc326gaus.de/event/conformal-field-theory/
LOCATION:Darmstadt\, Room S214/24
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240119T101500
DTEND;TZID=Europe/Berlin:20240119T114500
DTSTAMP:20260423T161908
CREATED:20231121T124824Z
LAST-MODIFIED:20240110T142026Z
UID:7183-1705659300-1705664700@crc326gaus.de
SUMMARY:Exodromy
DESCRIPTION:Klaus Mattis (Universität Mainz): Gluing squares
URL:https://crc326gaus.de/event/exodromy-11/
LOCATION:Mainz\, Raum 05-514
CATEGORIES:GAUS-AG
ORGANIZER;CN="Tom Bachmann":MAILTO:tom.bachmann@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240119T091500
DTEND;TZID=Europe/Berlin:20240119T104500
DTSTAMP:20260423T161908
CREATED:20240110T133609Z
LAST-MODIFIED:20240110T134202Z
UID:7566-1705655700-1705661100@crc326gaus.de
SUMMARY:Rigid meromorphic cocycles
DESCRIPTION:Lucas Gerth (Universität Frankfurt): Diagonal restrictions of p-adic Eisenstein families
URL:https://crc326gaus.de/event/rigid-meromorphic-cocycles-10/
LOCATION:Heidelberg\, Mathematikon\, SR 8 und Zoom\, Germany
CATEGORIES:GAUS-AG
ORGANIZER;CN="O%C4%9Fuz Gezmi%C5%9F":MAILTO:oguz.gezmis@iwr.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240118T150000
DTEND;TZID=Europe/Berlin:20240118T163000
DTSTAMP:20260423T161908
CREATED:20231009T095724Z
LAST-MODIFIED:20240110T132631Z
UID:6392-1705590000-1705595400@crc326gaus.de
SUMMARY:Rigid Analytic Motives
DESCRIPTION:Talk 10: Can Yaylali (TU Darmstadt): Weight Structures \nZoom meeting ID: 612 2072 7363\, Password: Largest six digit prime number.
URL:https://crc326gaus.de/event/rigid-analytic-motives-26/
LOCATION:Darmstadt\, Room 244 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240118T110000
DTEND;TZID=Europe/Berlin:20240118T130000
DTSTAMP:20260423T161908
CREATED:20231010T132914Z
LAST-MODIFIED:20231121T150752Z
UID:6539-1705575600-1705582800@crc326gaus.de
SUMMARY:Emerton-Gee-Stacks
DESCRIPTION:Talk 10: Annie Littler (Universität Heidelberg): Moduli stacks of (φ\, Γ)-modules IV – trianguline rank two case
URL:https://crc326gaus.de/event/emerton-gee-stacks-10/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240116T160000
DTEND;TZID=Europe/Berlin:20240116T170000
DTSTAMP:20260423T161908
CREATED:20231009T105238Z
LAST-MODIFIED:20231221T093008Z
UID:6415-1705420800-1705424400@crc326gaus.de
SUMMARY:Automorphism group of Cartan modular curves
DESCRIPTION:International Seminar on Automorphic Forms \nPietro Mercuri (University of Rome – La Sapienza) \nWe consider the modular curves associated to a Cartan subgroup of GL(2\,Z/nZ) or to a particular class of subgroups of GL(2\,Z/nZ) containing the Cartan subgroup as a normal subgroup. We describe the automorphism group of these curves when the level is large enough. If time permits\, we give a sketch of the proof. \nhttps://tu-darmstadt.zoom.us/j/68048280736 \nThe password is the first Fourier coefficient of the modular j-function (as digits).
URL:https://crc326gaus.de/event/tba-69/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20240115
DTEND;VALUE=DATE:20240116
DTSTAMP:20260423T161908
CREATED:20231206T113526Z
LAST-MODIFIED:20231206T113526Z
UID:7404-1705276800-1705363199@crc326gaus.de
SUMMARY:Junior Symposium
DESCRIPTION: \n
URL:https://crc326gaus.de/event/junior-symposium/
LOCATION:Darmstadt
CATEGORIES:GAUS-Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240112T133000
DTEND;TZID=Europe/Berlin:20240112T150000
DTSTAMP:20260423T161908
CREATED:20240101T193202Z
LAST-MODIFIED:20240101T193202Z
UID:7526-1705066200-1705071600@crc326gaus.de
SUMMARY:Equivariant motives and actions of finite reductive groups
DESCRIPTION:Can Yaylali (Darmstadt/Paris) \nAbstract: A finite reductive group G^F is defined as the fixed points of a reductive group G/F_q under the q-Frobenius endomorphism. Their representations were studied by Deligne-Lusztig and Brokemper gave a description of the G^F-equivariant intersection ring of a point (the ring classifying G^F-invariant cycles). Focusing on the latter\, I will give an introduction to (rational) motives with group actions and how this is related to equivariant intersection theory. I will use this formalism to relate motives with G^F-action to equivariant motives on the associated flag variety. I will also explain how this relates to Brokemper’s computations on algebraic cycles. If time permits\, I will try to discuss the implications on l-adic cohomology and how this can be used in the future to study motivic representation theory of G^F following Deligne-Lusztig.
URL:https://crc326gaus.de/event/equivariant-motives-and-actions-of-finite-reductive-groups/
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:20240112T101500
DTEND;TZID=Europe/Berlin:20240112T114500
DTSTAMP:20260423T161908
CREATED:20231121T124614Z
LAST-MODIFIED:20240110T141719Z
UID:7181-1705054500-1705059900@crc326gaus.de
SUMMARY:Exodromy
DESCRIPTION:Nikita Müller (Universität Mainz): Beck–Chevalley conditions
URL:https://crc326gaus.de/event/exodromy-10/
LOCATION:Mainz\, Raum 05-514
CATEGORIES:GAUS-AG
ORGANIZER;CN="Tom Bachmann":MAILTO:tom.bachmann@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240112T091500
DTEND;TZID=Europe/Berlin:20240112T104500
DTSTAMP:20260423T161908
CREATED:20240110T125900Z
LAST-MODIFIED:20240110T133355Z
UID:7562-1705050900-1705056300@crc326gaus.de
SUMMARY:Rigid meromorphic cocycles
DESCRIPTION:Jakob Burgi (Universität Heidelberg): Families of Eisenstein series and the winding cocycle
URL:https://crc326gaus.de/event/rigid-meromorphic-cocycles-9/
LOCATION:Heidelberg\, Mathematikon\, SR 8 und Zoom\, Germany
CATEGORIES:GAUS-AG
ORGANIZER;CN="O%C4%9Fuz Gezmi%C5%9F":MAILTO:oguz.gezmis@iwr.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240111T150000
DTEND;TZID=Europe/Berlin:20240111T163000
DTSTAMP:20260423T161908
CREATED:20231009T095414Z
LAST-MODIFIED:20231207T110512Z
UID:6390-1704985200-1704990600@crc326gaus.de
SUMMARY:Rigid Analytic Motives
DESCRIPTION:Talk 9: Timo Richarz (TU Darmstadt): Rigid motives as algebraic motives with monodromy \nZoom meeting ID: 612 2072 7363\, Password: Largest six digit prime number.
URL:https://crc326gaus.de/event/rigid-analytic-motives-25/
LOCATION:Darmstadt\, Room 244 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240111T110000
DTEND;TZID=Europe/Berlin:20240111T130000
DTSTAMP:20260423T161908
CREATED:20231010T132638Z
LAST-MODIFIED:20231121T102323Z
UID:6535-1704970800-1704978000@crc326gaus.de
SUMMARY:Emerton-Gee-Stacks
DESCRIPTION:Talk 9: Rustam Steingart (Universität Heidelberg): Moduli stacks of (φ\, Γ)-modules II – the geometry
URL:https://crc326gaus.de/event/emerton-gee-stacks-8/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231222T153000
DTEND;TZID=Europe/Berlin:20231222T170000
DTSTAMP:20260423T161908
CREATED:20231016T110911Z
LAST-MODIFIED:20231215T072743Z
UID:6700-1703259000-1703264400@crc326gaus.de
SUMMARY:Deformations of $(G\,\mu)$-Displays
DESCRIPTION:Seminar on Arithmetic Geometry \nMohammad Hadi Hedayatzadeh (Institute for Research in Fundamental Sciences) \nIn this talk\, I will discuss a joint project with A. Partofard\, on prismatic displays with additional structures. I will start with a concise overview of the theory of displays developed by Th. Zink\, which serves as a generalization of Dieudonné theory. Displays play a crucial role in the study of Barsotti-Tate groups when the base is not a perfect field of positive characteristic. Zink has further expanded the theory by introducing windows over frames. In another direction\, in order to construct integral models of certain Shimura varieties that are not of Abelian type\, O. Bültel defined and studied displays with additional structures called $(G\,\mu)$-displays. \nIn this joint project with Partofard\, we define and study the stack of prismatic $(G\,\mu)$-displays over the quasi-syntomic site\, which is better adapted to the setting of pefectoid geometry and is closely related to the stack of $G$-torsors over the Fargues-Fontaine curve and local Shimura varieties. When $G$ is the general linear group\, our stack is the same as the stack of admissible prismatic $F$-crystals developed by Anschütz-LeBras\, which is equivalent to the stack of $p$-divisible groups. We also prove a Grothendieck-Messing style deformation result for these prismatic displays\, which\, for the general linear group\, answers a question of Anschütz-LeBras. \nZoom (635 7328 0984\, Password: smallest six digit prime).
URL:https://crc326gaus.de/event/tba-87/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Sabrina Pauli":MAILTO:pauli@mathematik.tu-darmstadt.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231222T101500
DTEND;TZID=Europe/Berlin:20231222T114500
DTSTAMP:20260423T161908
CREATED:20231121T124232Z
LAST-MODIFIED:20231204T074702Z
UID:7179-1703240100-1703245500@crc326gaus.de
SUMMARY:Exodromy
DESCRIPTION:Klaus Mattis (Universität Mainz): Local ∞-topoi
URL:https://crc326gaus.de/event/exodromy-9/
LOCATION:Mainz\, Raum 05-514
CATEGORIES:GAUS-AG
ORGANIZER;CN="Tom Bachmann":MAILTO:tom.bachmann@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231221T150000
DTEND;TZID=Europe/Berlin:20231221T163000
DTSTAMP:20260423T161908
CREATED:20231009T095218Z
LAST-MODIFIED:20231207T110311Z
UID:6388-1703170800-1703176200@crc326gaus.de
SUMMARY:Rigid Analytic Motives
DESCRIPTION:Talk 7: Christian Dahlhausen (Heidelberg): Rigid analytic motives II: comparing categories of motives \nZoom meeting ID: 612 2072 7363\, Password: Largest six digit prime number.
URL:https://crc326gaus.de/event/rigid-analytic-motives-24/
LOCATION:Darmstadt\, Room 244 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231215T153000
DTEND;TZID=Europe/Berlin:20231215T170000
DTSTAMP:20260423T161908
CREATED:20231016T110711Z
LAST-MODIFIED:20231205T130426Z
UID:6698-1702654200-1702659600@crc326gaus.de
SUMMARY:Motivic Linking
DESCRIPTION:Seminar on Arithmetic Geometry \nClémentine Lemarié—Rieusset (University of Burgundy) \nIn this talk I will present motivic linking\, a new application in algebraic geometry of motivic homotopy theory (specifically\, of quadratic intersection theory). Over a perfect field F\, motivic linking consists in the study of how two (nice) closed F-subschemes of a (nice) ambient F-scheme are linked (i.e. intertwined) and is a counterpart to linking in knot theory. More specifically\, I will present counterparts in algebraic geometry to the linking number of two oriented disjoint knots (the number of times one of the knots turns around the other knot). For the most part\, these counterparts take values in the Witt group of F or in the Grothendieck-Witt group of F\, rather than in the group of integers. There will be several examples\, including closed immersions between smooth models of motivic spheres and closed immersions between projective spaces. \nZoom (635 7328 0984\, Password: smallest six digit prime).
URL:https://crc326gaus.de/event/tba-86/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Sabrina Pauli":MAILTO:pauli@mathematik.tu-darmstadt.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231215T133000
DTEND;TZID=Europe/Berlin:20231215T150000
DTSTAMP:20260423T161908
CREATED:20231206T105109Z
LAST-MODIFIED:20231206T105410Z
UID:7399-1702647000-1702652400@crc326gaus.de
SUMMARY:Torsion in Griffiths Groups
DESCRIPTION:Theodosis Alexandrou (Universität Hannover) \nThe Griffiths group $Griff^{i}(X)$ of a smooth complex projective variety $X$ is the group of nullhomologous codimension$-i$ cycles on $X$ modulo algebraic equivalence. Recently Schreieder gave the first examples of smooth complex projective varieties $X$ for which the Griffiths group has infinite torsion. In his examples the infinitely many torsion classes are of order 2. In this talk we show that for any integer $n\geq 2$\, there is a smooth complex projective $5-$fold $X$ whose third Griffiths group contains infinitely many torsion elements of order $n$.
URL:https://crc326gaus.de/event/torsion-in-griffiths-groups/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231215T103000
DTEND;TZID=Europe/Berlin:20231215T120000
DTSTAMP:20260423T161908
CREATED:20231214T103650Z
LAST-MODIFIED:20231214T104458Z
UID:7470-1702636200-1702641600@crc326gaus.de
SUMMARY:On analogs of Cremona automorphisms for matroid fans
DESCRIPTION:Stefan Rettenmayr (Universität Frankfurt) \nDisputation
URL:https://crc326gaus.de/event/on-analogs-of-cremona-automorphisms-for-matroid-fans/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Disputation
ORGANIZER;CN="Annette Werner":MAILTO:werner[at]math.uni-frankfurt.de
END:VEVENT
END:VCALENDAR