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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250414T101500
DTEND;TZID=Europe/Berlin:20250414T114500
DTSTAMP:20260403T205600
CREATED:20250409T092915Z
LAST-MODIFIED:20250514T084853Z
UID:10976-1744625700-1744631100@crc326gaus.de
SUMMARY:Motivic Spectra
DESCRIPTION:Talk 1: Definition of motivic spectra (Andreas Gieringer)\nDefine elementary and smooth blowup excision [AHI25\, Definition 2.1]\, and prove that Nisnevich-locally they agree [AHI25\, Proposition 2.2]. Explain how to invert and object c in a presentable symmetric monoidal ∞-category C\, i.e. explain [AI22\, Proposition 1.3.14].\nNote that in general\, this is not given by the c-telescope colimPrL(C−⊗c −−→ C → . . . ). End the talk by giving the definition of MSS\, as in the beginning of [AHI25\, Section 4]. If time permits\, explain the basic functoriality of MSS.
URL:https://crc326gaus.de/event/definition-of-motivic-spectra-andreas-gieringer-easy/
LOCATION:Mainz\, Hilbertraum (05-432) and Zoom
CATEGORIES:GAUS-AG
ORGANIZER;CN="Georg Tamme":MAILTO:georg.tamme@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250422T140000
DTEND;TZID=Europe/Berlin:20250422T153000
DTSTAMP:20260403T205600
CREATED:20250328T082321Z
LAST-MODIFIED:20250506T085721Z
UID:10834-1745330400-1745335800@crc326gaus.de
SUMMARY:Categorical Deligne–Langlands correspondence
DESCRIPTION:Yanik Kleibrink (TU Darmstadt): Talk 1* – Weil–Deligne representations \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/categorical-deligne-langlands-correspondence/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250424T111500
DTEND;TZID=Europe/Berlin:20250424T131500
DTSTAMP:20260403T205600
CREATED:20250410T090600Z
LAST-MODIFIED:20250705T142923Z
UID:11012-1745493300-1745500500@crc326gaus.de
SUMMARY:Locally analytic vector bundles on the Fargues-Fontaine-Curve
DESCRIPTION:The adic Fargue-Fontaine curve \nspeaker: Max Witzelsperger (Heidelberg)
URL:https://crc326gaus.de/event/locally-analytic-vector-bundles-on-the-fargues-fontaine-curve/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250424T130000
DTEND;TZID=Europe/Berlin:20250424T133000
DTSTAMP:20260403T205600
CREATED:20250415T220356Z
LAST-MODIFIED:20250415T220356Z
UID:11048-1745499600-1745501400@crc326gaus.de
SUMMARY:Berkovich motives
DESCRIPTION:Talk 0: Overview (15min) ( Alberto Merici)
URL:https://crc326gaus.de/event/berkovich-motives-12/
LOCATION:Darmstadt\, Room 315 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250424T133000
DTEND;TZID=Europe/Berlin:20250424T150000
DTSTAMP:20260403T205600
CREATED:20250415T220356Z
LAST-MODIFIED:20250415T220356Z
UID:11050-1745501400-1745506800@crc326gaus.de
SUMMARY:Berkovich motives
DESCRIPTION:Talk 1: Motives (Christian Dahlhausen)
URL:https://crc326gaus.de/event/berkovich-motives-11/
LOCATION:Darmstadt\, Room 315 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250424T140000
DTEND;TZID=Europe/Berlin:20250424T160000
DTSTAMP:20260403T205600
CREATED:20250402T124958Z
LAST-MODIFIED:20250424T112821Z
UID:10909-1745503200-1745510400@crc326gaus.de
SUMMARY:Holomorphic triple products
DESCRIPTION:Jonas Stelzig (LMU München / JGU Mainz) \nAbstract: I will introduce\, and survey the context of\, ABC triple Massey products\, a holomorphic analogue of ordinary triple Massey products for complex manifolds. Then\, I will discuss the (non)vanishing of these operations in situations of geometric interest\, including toric\, compact homogeneous Kähler\, and Calabi Yau manifolds.
URL:https://crc326gaus.de/event/jonas-stelzig-lmu-munchen-jgu-mainz/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Georg Tamme":MAILTO:georg.tamme@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250424T153000
DTEND;TZID=Europe/Berlin:20250424T163000
DTSTAMP:20260403T205600
CREATED:20250415T220355Z
LAST-MODIFIED:20250415T220355Z
UID:11054-1745508600-1745512200@crc326gaus.de
SUMMARY:Berkovich motives
DESCRIPTION:Talk 2: Cancellation Theorem (75min) ( Alberto Merici)
URL:https://crc326gaus.de/event/berkovich-motives-10/
LOCATION:Darmstadt\, Room 315 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250425T090000
DTEND;TZID=Europe/Berlin:20250425T110000
DTSTAMP:20260403T205600
CREATED:20250408T083340Z
LAST-MODIFIED:20250408T084433Z
UID:10939-1745571600-1745578800@crc326gaus.de
SUMMARY:D-elliptic sheaves and the Hasse principle
DESCRIPTION:Overview \nSriram Chinthalagiri Venkata (Heidelberg) \nBegin by recalling Drinfeld’s theory of elliptic sheaves (or Shtukas) ([Mumford; Dri87])\, andexplain briefly the importance of considering generalizations of them equipped with an action of D\, namely D-elliptic sheaves. Then motivate and explain the main result in [Ara+24]\, by summarizing each talk of the seminar.
URL:https://crc326gaus.de/event/overview/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250425T133000
DTEND;TZID=Europe/Berlin:20250425T143000
DTSTAMP:20260403T205600
CREATED:20250320T114302Z
LAST-MODIFIED:20250320T114302Z
UID:10728-1745587800-1745591400@crc326gaus.de
SUMMARY:From p-adic Hodge theory to motivic cohomology and back
DESCRIPTION:Tess Bouis (Universität Regensburg) \nAbstract: The initial goal of p-adic Hodge theory\, as formulated by the foundational conjectures of Fontaine in the 1980s\, is to compare the different p-adic cohomology theories one can associate to schemes of mixed characteristic (0\,p). If Fontaine’s conjectures have now been solved by the work of many people\, the recent development of prismatic cohomology has shed new light on integral aspects of this theory. In this talk\, I want to explain how one can use these recent advances in p-adic Hodge theory to construct a new theory of motivic cohomology for general (qcqs) schemes. This theory generalises the recent construction of Elmanto-Morrow over a field to mixed characteristic\, and allows us to give a simplified motivic approach to certain classical results in p-adic Hodge theory. This is part of a joint work in progress with Arnab Kundu.
URL:https://crc326gaus.de/event/from-p-adic-hodge-theory-to-motivic-cohomology-and-back/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250425T153000
DTEND;TZID=Europe/Berlin:20250425T170000
DTSTAMP:20260403T205600
CREATED:20250407T074322Z
LAST-MODIFIED:20250408T065958Z
UID:10935-1745595000-1745600400@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Zhixiang Wu (Universität Münster): Bernstein-Zelevinsky duality for locally analytic principal series representations \nBernstein-Zelevinsky duality is classically a duality on the derived category of smooth representations of a p-adic Lie group. In this talk\, we will consider the Bernstein-Zelevinsky duality for locally analytic representations of p-adic Lie groups\, and compute explicitly the duality for principal series representations. I will also explain the relationship of this duality with the duality of coherent sheaves on the (patched) eigenvariety. This is joint work with Matthias Strauch. \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-24/
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:20250428T101500
DTEND;TZID=Europe/Berlin:20250428T114500
DTSTAMP:20260403T205600
CREATED:20250409T093126Z
LAST-MODIFIED:20250611T065119Z
UID:10978-1745835300-1745840700@crc326gaus.de
SUMMARY:Motivic Spectra
DESCRIPTION:Talk 2: Thom-spaces (Timo Weiß)
URL:https://crc326gaus.de/event/talk-2-thom-spaces-timo-weis-hard/
LOCATION:Mainz\, Hilbertraum (05-432) and Zoom
CATEGORIES:GAUS-AG
ORGANIZER;CN="Georg Tamme":MAILTO:georg.tamme@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250429T140000
DTEND;TZID=Europe/Berlin:20250429T153000
DTSTAMP:20260403T205600
CREATED:20250328T083049Z
LAST-MODIFIED:20250424T102751Z
UID:10838-1745935200-1745940600@crc326gaus.de
SUMMARY:Categorical Deligne–Langlands correspondence
DESCRIPTION:Talk 2: Michelle Klemt: Spaces of L-parameters \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/categorical-deligne-langlands-correspondence-2/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250429T160000
DTEND;TZID=Europe/Berlin:20250429T170000
DTSTAMP:20260403T205600
CREATED:20250416T090518Z
LAST-MODIFIED:20250424T102200Z
UID:11080-1745942400-1745946000@crc326gaus.de
SUMMARY:Algebraic proof of modular form inequalities for optimal sphere packings
DESCRIPTION:International Seminar on Automorphic Forms \nSeewoo Lee (UC Berkeley) \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-139/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250430T141500
DTEND;TZID=Europe/Berlin:20250430T170000
DTSTAMP:20260403T205600
CREATED:20250430T091301Z
LAST-MODIFIED:20250430T091301Z
UID:11187-1746022500-1746032400@crc326gaus.de
SUMMARY:Gromov-Witten theory and real enumerative geometry
DESCRIPTION:14:15 – 15:15 Talk 1: Andrei Bud (Universität Frankfurt): Real structures in low genus \n15:45 – 16:45 Talk 2: Jeonghoon So (Universität Frankfurt): Counting coverings \n 
URL:https://crc326gaus.de/event/gromov-witten-theory-and-real-enumerative-geometry/
LOCATION:Frankfurt\, Robert-Mayer-Str. 6-8\, Raum 309
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250502T090000
DTEND;TZID=Europe/Berlin:20250502T110000
DTSTAMP:20260403T205600
CREATED:20250408T085242Z
LAST-MODIFIED:20250506T075707Z
UID:10948-1746176400-1746183600@crc326gaus.de
SUMMARY:D-elliptic sheaves and the Hasse principle
DESCRIPTION:Stacks I \nspeaker: Chia-Fu Yu (Academia Sinica\, Taiwan) \n 
URL:https://crc326gaus.de/event/d-elliptic-sheaves-and-the-hasse-principle/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250502T153000
DTEND;TZID=Europe/Berlin:20250502T170000
DTSTAMP:20260403T205600
CREATED:20250402T112950Z
LAST-MODIFIED:20250402T114256Z
UID:10903-1746199800-1746205200@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Christian Dahlhausen  (Universität Heidelberg): Duality in (perfect) motivic homotopy theory \nThis talk treats a conjectured duality on modules over\nK-theory in the stable homotopy category of a scheme whose dualising\nobject is given by G-theory. I shall explain a proof of the conjecture\nfor quasi-excellent schemes in characteristic zero. In order to approach\nthe conjecture in positive characteristic\, I sketch the construction of\na “perfect motivic homotopy category” and compare it to the classical\nhomotopy category. For this perfect category\, I shall sketch the proof\nof an analogous version of the duality conjecture. This is joint work\nwith Denis-Charles Cisinski\, Jeroen Hekking\, and Storm Wolters. \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-23/
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:20250506T140000
DTEND;TZID=Europe/Berlin:20250506T153000
DTSTAMP:20260403T205600
CREATED:20250328T083206Z
LAST-MODIFIED:20250506T085824Z
UID:10842-1746540000-1746545400@crc326gaus.de
SUMMARY:Categorical Deligne–Langlands correspondence
DESCRIPTION:Saskia Kern : Talk 3 – Derived categories of quasi-coherent sheaves \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/categorical-deligne-langlands-correspondence-3/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250506T160000
DTEND;TZID=Europe/Berlin:20250506T170000
DTSTAMP:20260403T205600
CREATED:20250416T090743Z
LAST-MODIFIED:20250506T091439Z
UID:11085-1746547200-1746550800@crc326gaus.de
SUMMARY:The Shintani–Faddeev modular cocycle: Stark units from q-Pochhammer ratios
DESCRIPTION:International Seminar on Automorphic Forms \nZhiyuan Li (SCMS\, Fudan University) \nThe Shintani–Faddeev modular cocycle: Stark units from q-Pochhammer ratios \nWe give a new interpretation of Stark units associated to real quadratic fields as special “real multiplication values” of a modular cocycle described by complex meromorphic continuation of a simple infinite product. The cocycle encodes the modular transformations of the infinite q-Pochhammer symbol and is related to the Shintani–Barnes double sine funciton and the Faddeev quantum dilogarithm. As a corollary\, we describe some intriguing features of the asymptotic behavior of the infinite q-Pochhammer symbol as the modular parameter approaches a real quadratic number. \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-copy-5/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250507T141500
DTEND;TZID=Europe/Berlin:20250507T170000
DTSTAMP:20260403T205600
CREATED:20250430T091935Z
LAST-MODIFIED:20250430T091935Z
UID:11189-1746627300-1746637200@crc326gaus.de
SUMMARY:Gromov-Witten theory and real enumerative geometry
DESCRIPTION:14:15 – 15:15 Talk 3: Nicole Müller (Universität Frankfurt): Shifted Symmetric functions and quasimodular forms \n15:45 – 16:45 Talk 4: Lukas Schneider (Universität Frankfurt): Quick start to M g\,n and its intersection theory \n 
URL:https://crc326gaus.de/event/gromov-witten-theory-and-real-enumerative-geometry-2/
LOCATION:Frankfurt\, Robert-Mayer-Str. 6-8\, Raum 309
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250508T111500
DTEND;TZID=Europe/Berlin:20250508T131500
DTSTAMP:20260403T205600
CREATED:20250410T091017Z
LAST-MODIFIED:20250705T142917Z
UID:11016-1746702900-1746710100@crc326gaus.de
SUMMARY:Locally analytic vector bundles on the Fargues-Fontaine-Curve
DESCRIPTION:(Equivariant) vector bundles \nspeaker: Otmar Venjakob (Heidelberg)
URL:https://crc326gaus.de/event/locally-analytic-vector-bundles-on-the-fargues-fontaine-curve-2/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250508T140000
DTEND;TZID=Europe/Berlin:20250508T173000
DTSTAMP:20260403T205600
CREATED:20250327T085149Z
LAST-MODIFIED:20250416T121219Z
UID:10790-1746712800-1746725400@crc326gaus.de
SUMMARY:Anabelian geometry - Daniel Litt "Arithmetic representations of fundamental groups II"
DESCRIPTION:14:00 – 15:15 Talk 0: Marius Leonhardt (Universität Heidelberg): Introduction \n15:45 – 17:00 Talk 1: Benjamin Steklov (Universität Frankfurt): Deformation spaces \n 
URL:https://crc326gaus.de/event/anabelian-geometry-arithmetic-representations-of-fundamental-groups-after-daniel-litt-arithmetic-representations-of-fundamental-groups-ii/
LOCATION:Heidelberg
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250508T141500
DTEND;TZID=Europe/Berlin:20250508T151500
DTSTAMP:20260403T205600
CREATED:20250423T095325Z
LAST-MODIFIED:20250503T124627Z
UID:11134-1746713700-1746717300@crc326gaus.de
SUMMARY:Duality in (perfect) motivic homotopy theory
DESCRIPTION:Christian Dahlhausen (Uni Heidelberg) \nAbstract: This talk treats a conjectured duality on modules over K-theory in the stable homotopy category of a scheme whose dualising object is given by G-theory. I shall explain a proof of the conjecture for quasi-excellent schemes in characteristic zero. In order to approach the conjecture in positive characteristic\, I sketch the construction of a “perfect motivic homotopy category” and compare it to the classical homotopy category. For this perfect category\, I shall sketch the proof of an analogous version of the duality conjecture. This is joint work with Denis-Charles Cisinski\, Jeroen Hekking\, and Storm Wolters.
URL:https://crc326gaus.de/event/duality-in-perfect-motivic-homotopy-theory/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Tom Bachmann":MAILTO:tom.bachmann@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250509T090000
DTEND;TZID=Europe/Berlin:20250509T110000
DTSTAMP:20260403T205600
CREATED:20250408T085639Z
LAST-MODIFIED:20250506T075628Z
UID:10950-1746781200-1746788400@crc326gaus.de
SUMMARY:D-elliptic sheaves and the Hasse principle
DESCRIPTION:D-elliptic sheaves \nspeaker: Theresa Kaiser (Heidelberg) \n 
URL:https://crc326gaus.de/event/d-elliptic-sheaves-and-the-hasse-principle-2/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250509T133000
DTEND;TZID=Europe/Berlin:20250509T143000
DTSTAMP:20260403T205600
CREATED:20250429T074250Z
LAST-MODIFIED:20250505T124728Z
UID:11177-1746797400-1746801000@crc326gaus.de
SUMMARY:Refined Chabauty–Kim computations for the thrice-punctured line over Z[1/6]
DESCRIPTION:Martin Lüdtke (MPIM Bonn) \nAbstract: If X is a curve of genus at least 2 defined over the rational numbers\, we know by Faltings’s Theorem that the set X(Q) of rational points is finite but we don’t know how to systematically compute this set. In 2005\, Minhyong Kim proposed a new framework for studying rational (or S-integral) points on curves\, called the Chabauty–Kim method. It aims to produce p-adic analytic functions on X(Q_p) containing the rational points X(Q) in their zero locus. We apply this method to solve the S-unit equation for S={2\,3} and computationally verify Kim’s Conjecture for many choices of the auxiliary prime p.
URL:https://crc326gaus.de/event/refined-chabauty-kim-computations-for-the-thrice-punctured-line-over-z1-6/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Marius Leonhardt":MAILTO:mleonhardt@mathi.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250509T153000
DTEND;TZID=Europe/Berlin:20250509T170000
DTSTAMP:20260403T205600
CREATED:20250409T121252Z
LAST-MODIFIED:20250409T121252Z
UID:11010-1746804600-1746810000@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Ferdinand Wagner  (Universität Bonn): q-Hodge filtrations\, Habiro cohomology\, and THH over ku \nThe recent work of Garoufalidis\, Scholze\, Wheeler\, and Zagier on the “Habiro ring of a number field” has sparked the question whether there exists a cohomology theory for smooth schemes over Z with coefficients in the Habiro ring\, the completion of Z[q] at all roots of unity\, and with specialisations to étale and de Rham cohomology. In this talk I’ll explain how this question is intimately related to the question whether the Hodge filtration on de Rham cohomology can be q-deformed to a filtration on q-de Rham cohomology. While such a q-deformed filtration (provably) doesn’t exist in general\, I’ll explain how to construct a filtration (along with the “Habiro cohomology”) in many interesting cases\, using topological Hochschild homology over the complex K-theory spectrum ku. I’ll also explain how a refined version of THH can be used to obtain a completely functorial construction for varieties over Q. \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-25/
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:20250513T100000
DTEND;TZID=Europe/Berlin:20250513T110000
DTSTAMP:20260403T205600
CREATED:20250416T090848Z
LAST-MODIFIED:20250513T081214Z
UID:11088-1747130400-1747134000@crc326gaus.de
SUMMARY:Theta series and tautological cycles on orthogonal Shimura varieties
DESCRIPTION:International Seminar on Automorphic Forms \nZhiyuan Li (Fudan university) \nTheta series and tautological cycles on orthogonal Shimura varieties \nIn this talk\, I will explore the fascinating interplay between lattice theory and vector- valued modular forms via theta series\, presenting an elegant connection that bridges these areas. I will discuss its applications in the study of cycle theory on orthogonal Shimura varieties. One of our findings reveal that the Picard group of the Baily-Borel compactification of a broad class of Shimura varieties is isomorphic to ℤ. I will also explain the geometric motivation of this project. Most results are joint work with Huang\, Müller and Ye. \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-141/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250513T140000
DTEND;TZID=Europe/Berlin:20250513T153000
DTSTAMP:20260403T205600
CREATED:20250328T083249Z
LAST-MODIFIED:20250506T085903Z
UID:10841-1747144800-1747150200@crc326gaus.de
SUMMARY:Categorical Deligne–Langlands correspondence
DESCRIPTION:Paul Siemon : Talk 4 – Self-duality of derived push forwards \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/categorical-deligne-langlands-correspondence-4/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250514T141500
DTEND;TZID=Europe/Berlin:20250514T170000
DTSTAMP:20260403T205600
CREATED:20250430T092352Z
LAST-MODIFIED:20250515T072428Z
UID:11191-1747232100-1747242000@crc326gaus.de
SUMMARY:Gromov-Witten theory and real enumerative geometry
DESCRIPTION:14:15 – 15:15 Talk 5: Moritz Frohwein (Universität Frankfurt): Cohomology of the moduli space of pointed rational curves \n15:45 – 16:45 Talk 6.1: Miguel Prado (Universität Frankfurt): Moduli of stable maps I \n 
URL:https://crc326gaus.de/event/gromov-witten-theory-and-real-enumerative-geometry-3/
LOCATION:Frankfurt\, Robert-Mayer-Str. 6-8\, Raum 309
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250515T111500
DTEND;TZID=Europe/Berlin:20250515T131500
DTSTAMP:20260403T205600
CREATED:20250410T091218Z
LAST-MODIFIED:20250705T142912Z
UID:11018-1747307700-1747314900@crc326gaus.de
SUMMARY:Locally analytic vector bundles on the Fargues-Fontaine-Curve
DESCRIPTION:Comparison to (φ\, Γ)-modules \nMarvin Schneider (Heidelberg)
URL:https://crc326gaus.de/event/locally-analytic-vector-bundles-on-the-fargues-fontaine-curve-3/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250515T130000
DTEND;TZID=Europe/Berlin:20250515T143000
DTSTAMP:20260403T205600
CREATED:20250415T220355Z
LAST-MODIFIED:20250506T153419Z
UID:11056-1747314000-1747319400@crc326gaus.de
SUMMARY:Berkovich motives
DESCRIPTION:Talk 3: Berkovich spaces (Katharina Hübner)
URL:https://crc326gaus.de/event/berkovich-motives-9/
LOCATION:Heidelberg\, MATHEMATIKON\, SR 12\, INF 205\, Heidelberg\, BW\, 69124\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
END:VCALENDAR