BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CRC 326 - GAUS - ECPv6.18.3.1//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:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20260329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20261025T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20270328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20271031T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261103T101500
DTEND;TZID=Europe/Berlin:20261103T114500
DTSTAMP:20261027T070632Z
CREATED:20261021T101106Z
LAST-MODIFIED:20261027T070632Z
UID:14617-1793700900-1793706300@crc326gaus.de
SUMMARY:Seminar on Perverse Sheaves and Intersection Cohomology
DESCRIPTION:Talk 3: Perverse sheaves (Joao Lobo) \nRecall the notion of a t-structure on a stable category and introduce the\nstandard t-structure on (hypercomplete) sheaves on a topological space as the main example for us. Prove how to glue two t-structures in a recolle-ment (e.g. [Ban07\, Theorem 7.2.2]). Define the perverse t-structure on the category of hypersheaves on a stratified topological space and prove that it is indeed a t-structure [HPT26\, Section 3]. Explain how it restricts to a t-structure on constructible sheaves [HPT26\, Remark 4.2.12]. More classical literature can be found in [Dim04\, Section 5.1] or [Ban07\, Section 7]. \nhttps://uni-mainz-de.zoom.us/j/64063305650?pwd=DfaEkoLgqOJRGRL9z6MDbluM5cHMtx.1 \nMeeting-ID: 640 6330 5650 \nKenncode: 384917
URL:https://crc326gaus.de/event/gaus-ag-3/
LOCATION:Mainz and zoom
CATEGORIES:GAUS-AG
ORGANIZER;CN="Georg Tamme":MAILTO:georg.tamme@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261103T135000
DTEND;TZID=Europe/Berlin:20261103T152000
DTSTAMP:20261019T085526Z
CREATED:20260917T130323Z
LAST-MODIFIED:20261019T085526Z
UID:14156-1793713800-1793719200@crc326gaus.de
SUMMARY:Langlands Duality for Hitchin Systems
DESCRIPTION:Talk 3: Hitchin fibration II\nKonstantin Jakob (TU Darmstadt) \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/langlands-duality-for-hitchin-systems-3/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261103T200000
DTEND;TZID=Europe/Berlin:20261103T213000
DTSTAMP:20260917T132158Z
CREATED:20260917T132158Z
LAST-MODIFIED:20260917T132158Z
UID:14187-1793736000-1793741400@crc326gaus.de
SUMMARY:AI and the Future of Mathematics
DESCRIPTION:Thomas Kahle (Universität Magdeburg): You are right\, and I apologize: How AI changed one mathematician and mathematics in general \nA joint seminar of TRR 326\, TRR 358\, CRC 1442\, and Mathematics Münster\, devoted specifically to the impact of AI on mathematics.
URL:https://crc326gaus.de/event/ai-and-the-future-of-mathematics-3/
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261105T090000
DTEND;TZID=Europe/Berlin:20261105T110000
DTSTAMP:20261021T115633Z
CREATED:20260916T125108Z
LAST-MODIFIED:20261021T115633Z
UID:14085-1793869200-1793876400@crc326gaus.de
SUMMARY:Elementary anabelian varieties are anabelian
DESCRIPTION:Talk 5: Nils Witt (Universität Heidelberg): Strong centre-freeness of̂ 𝜋_1
URL:https://crc326gaus.de/event/elementary-anabelian-varieties-are-anabelian-4/
LOCATION:Heidelberg\, Mathematikon\, SR 8\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261105T111500
DTEND;TZID=Europe/Berlin:20261105T124500
DTSTAMP:20261021T094921Z
CREATED:20260930T093711Z
LAST-MODIFIED:20261021T094921Z
UID:14317-1793877300-1793882700@crc326gaus.de
SUMMARY:The 6-Functor Formalism and finiteness/duality for (\varphi\, \Gamma)-modules
DESCRIPTION:Talk 4: Fawzy Hegab (Universität Heidelberg): \nCorrespondences and the 6-functor-formalism
URL:https://crc326gaus.de/event/the-6-functor-formalism-and-finiteness-duality-for-varphi-gamma-modules-5/
LOCATION:Heidelberg\, Mathematikon\, SR 8\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261105T133000
DTEND;TZID=Europe/Berlin:20261105T150000
DTSTAMP:20261006T133054Z
CREATED:20261006T133045Z
LAST-MODIFIED:20261006T133054Z
UID:14413-1793885400-1793890800@crc326gaus.de
SUMMARY:The Northcott Property in the Q-Isogeny Class of an Abelian Variety
DESCRIPTION:13:30 – 15:00 Talk 4: Simon Kaib (Goethe Universität): Faltings’ isogeny lemma \n 
URL:https://crc326gaus.de/event/the-northcott-property-in-the-q-isogeny-class-of-an-abelian-variety-copy-2/
LOCATION:Frankfurt\, Robert-Mayer-Str. 6-8\, Raum 309
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261105T141500
DTEND;TZID=Europe/Berlin:20261105T151500
DTSTAMP:20261103T150358Z
CREATED:20260730T100735Z
LAST-MODIFIED:20261103T150358Z
UID:13887-1793888100-1793891700@crc326gaus.de
SUMMARY:AGTZ-Kolloquium
DESCRIPTION:Sebastian Wolf (Kopenhagen) \nHigher Compacta and fundamental groups in rigid geometry\nThe category of condensed anima\, introduced by Clausen and Scholze\, is a setting for homotopical objects that carry an additional “topological” structure. We will begin by studying the subcategory of coherent condensed anima that forms a higher analogue of compact Hausdorff spaces. It turns out that many of the formal properties of (sheaves on) compact Hausdorff spaces carry over to this more general setting. Using some of these tools\, we will then turn to examples arising from rigid geometry and use this perspective to study fundamental groups of rigid spaces.
URL:https://crc326gaus.de/event/agtz-kolloquium-12/
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:20261106T080000
DTEND;TZID=Europe/Berlin:20261106T170000
DTSTAMP:20261015T060918Z
CREATED:20261006T090210Z
LAST-MODIFIED:20261015T060918Z
UID:14377-1793952000-1793984400@crc326gaus.de
SUMMARY:The Kudla program
DESCRIPTION:Talk 2: Will Davies: Classical Theta Correspondences
URL:https://crc326gaus.de/event/the-kudla-program-3/
LOCATION:Heidelberg\, Mathematikon\, SR 8\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
ORGANIZER;CN="Gebhard B%C3%B6ckle":MAILTO:gebhard.boeckle iwr.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261106T140000
DTEND;TZID=Europe/Berlin:20261106T180000
DTSTAMP:20261027T123156Z
CREATED:20261008T122824Z
LAST-MODIFIED:20261027T123156Z
UID:14439-1793973600-1793988000@crc326gaus.de
SUMMARY:Learning seminar on diamonds\, with an inclination towards topos theory
DESCRIPTION:14:00 – 18:00\nTalk 3: Ronald Solodov (Leibniz Universität Hannover): Points of analytic adic spaces and monomorphisms of representable presheaves on Perfd\nTalk 4: Xinyu Shao (Leibniz Universität Hannover): Proposition 6.4 \n 
URL:https://crc326gaus.de/event/learning-seminar-on-diamond-with-an-inclination-towards-topos-theory-2/
LOCATION:Hannover\, Raum 410 and via Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261106T153000
DTEND;TZID=Europe/Berlin:20261106T170000
DTSTAMP:20261028T110802Z
CREATED:20260917T123832Z
LAST-MODIFIED:20261028T110802Z
UID:14132-1793979000-1793984400@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Fabian Schnelle (University of Münster): Igusa stacks for certain abelian-type Shimura varieties \nIgusa stacks are objects of p-adic geometry that are supposed to interpolate Igusa varieties and help to analyze the cohomology of Shimura varieties from the vantage point of the categorical local Langlands correspondence. In this talk\, I will discuss the construction of Igusa stacks for certain abelian-type Shimura varieties that naturally arise from a PEL datum and are associated with the Weil restriction of an F-group\, for F a totally real number field. For this construction\, we leverage the existence of certain hybrid spaces that serve as a bridge between PEL-type and abelian-type Shimura varieties. \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl)
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-43/
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:20261110T101500
DTEND;TZID=Europe/Berlin:20261110T114500
DTSTAMP:20261021T101339Z
CREATED:20261021T101339Z
LAST-MODIFIED:20261021T101339Z
UID:14619-1794305700-1794311100@crc326gaus.de
SUMMARY:GAUS-AG
DESCRIPTION:Seminar on perverse sheaves and intersection cohomology \nTalk 4: Intersection cohomology 1: Definitions and basic examples (Jordan Levin) \nIntroduce topological pseudomanifolds and give examples [Ban07\, Section 4.1.2]. Introduce the intermediate extension functor j!∗ and prove its alternative characterisation by iterated truncations [Dim04\, Definition 5.2.6\, Proposition 5.2.10]\, [BBD82\, pp. 1.4.22\, 1.4.24\, 2.1.11]. Define intersection cohomology with respect to a local system L by IC(L) := j!∗L[dim X] and IHk(L) := Hk−dim X(X\, IC(L))\, see [Ban07\, Eq. 4.13] or [Dim04\, Defini-tion 5.4.3]. Compute intersection cohomology in the smooth case and in the case of isolated singularities [Dim04\, Proposition 5.4.4].
URL:https://crc326gaus.de/event/gaus-ag-4/
LOCATION:Mainz and zoom
CATEGORIES:GAUS-AG
ORGANIZER;CN="Georg Tamme":MAILTO:georg.tamme@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261110T135000
DTEND;TZID=Europe/Berlin:20261110T152000
DTSTAMP:20261019T085553Z
CREATED:20260917T130434Z
LAST-MODIFIED:20261019T085553Z
UID:14158-1794318600-1794324000@crc326gaus.de
SUMMARY:Langlands Duality for Hitchin Systems
DESCRIPTION:Talk 4: Reduction to Cohomology Statement\nTianyi Feng (TU Darmstadt) \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/langlands-duality-for-hitchin-systems-4/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20261111
DTEND;VALUE=DATE:20261112
DTSTAMP:20261013T140510Z
CREATED:20260713T125533Z
LAST-MODIFIED:20261013T140510Z
UID:13782-1794355200-1794441599@crc326gaus.de
SUMMARY:GAUS Junior Symposium
DESCRIPTION:Zeitplan \n11:00 – 12:00 Simon Kaib (Frankfurt) – From Tate Curves to Raynaud Uniformization\n12:00 – 13:30 lunch break\n13:30 – 14:30 Nutsa Gegelia (Mainz) – Arithmetic aspects of Picard-Fuchs equations\n14:30 – 15:00 coffee break\n15:00 – 16:00 Nathan Tiggemann (Darmstadt) – Combinatorial orientability\n16:00 – 16:30 break\n16:30 – 17:30 Miriam Philipp (Heidelberg) – Rigid meromorphic cocycles for function fields
URL:https://crc326gaus.de/event/gaus-junior-symposium-2/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261112T090000
DTEND;TZID=Europe/Berlin:20261112T110000
DTSTAMP:20261106T143120Z
CREATED:20260916T125337Z
LAST-MODIFIED:20261106T143120Z
UID:14087-1794474000-1794481200@crc326gaus.de
SUMMARY:Elementary anabelian varieties are anabelian
DESCRIPTION:Talk 5.2 Nils Witt (Universität Heidelberg): Strong centre-freeness of̂ 𝜋_1
URL:https://crc326gaus.de/event/elementary-anabelian-varieties-are-anabelian-5/
LOCATION:Heidelberg\, Mathematikon\, SR 8\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261112T111500
DTEND;TZID=Europe/Berlin:20261112T124500
DTSTAMP:20261103T094708Z
CREATED:20260929T114120Z
LAST-MODIFIED:20261103T094708Z
UID:14309-1794482100-1794487500@crc326gaus.de
SUMMARY:The 6-Functor Formalism and finiteness/duality for (\varphi\, \Gamma)-modules
DESCRIPTION:Talk 5: Jon Miles (Universität Heidelberg): \nThe kernel category\, suave and prim objects
URL:https://crc326gaus.de/event/the-6-functor-formalism-and-finiteness-duality-for-varphi-gamma-modules-2/
LOCATION:Frankfurt\, Robert-Mayer-Str. 6-8\, Raum 310\, Deutschland
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261112T153000
DTEND;TZID=Europe/Berlin:20261112T183000
DTSTAMP:20261022T140623Z
CREATED:20260701T124516Z
LAST-MODIFIED:20261022T140623Z
UID:13727-1794497400-1794508200@crc326gaus.de
SUMMARY:CRC-Colloquium
DESCRIPTION:15:00 Coffee\n15:30 – 16:30  Judith Ludwig (Universität Heidelberg): Eigenvarieties\n16:30 Coffee and Cake\n17:15 – 18:15  Torsten Wedhorn (TU Darmstadt): Zips\n18:30 Dinner \n 
URL:https://crc326gaus.de/event/crc-colloquium-3/
LOCATION:Frankfurt\, Hörsaalgebäude Bockenheim\, H II
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261113T091500
DTEND;TZID=Europe/Berlin:20261113T104500
DTSTAMP:20261006T090528Z
CREATED:20261006T090528Z
LAST-MODIFIED:20261006T090528Z
UID:14379-1794561300-1794566700@crc326gaus.de
SUMMARY:The Kudla program
DESCRIPTION:Talk 3: Nils Tietke (Universität Heidelberg): Symmetric spaces for Orthogonal groups
URL:https://crc326gaus.de/event/the-kudla-program-4/
LOCATION:Heidelberg\, Mathematikon\, SR 8\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
ORGANIZER;CN="Gebhard B%C3%B6ckle":MAILTO:gebhard.boeckle iwr.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261116T200000
DTEND;TZID=Europe/Berlin:20261116T213000
DTSTAMP:20260917T132316Z
CREATED:20260917T132316Z
LAST-MODIFIED:20260917T132316Z
UID:14189-1794859200-1794864600@crc326gaus.de
SUMMARY:AI and the Future of Mathematics
DESCRIPTION:Martin Raum (Chalmers University of Technology): AI is a tool: A working mathematician’s experience and perspective \nA joint seminar of TRR 326\, TRR 358\, CRC 1442\, and Mathematics Münster\, devoted specifically to the impact of AI on mathematics.
URL:https://crc326gaus.de/event/ai-and-the-future-of-mathematics-4/
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261117T101500
DTEND;TZID=Europe/Berlin:20261117T114500
DTSTAMP:20261027T070612Z
CREATED:20261021T101559Z
LAST-MODIFIED:20261027T070612Z
UID:14621-1794910500-1794915900@crc326gaus.de
SUMMARY:Seminar on Perverse Sheaves and Intersection Cohomology
DESCRIPTION:Talk 5: Intersection cohomology 2: Independence from the stratification (Timo Weiß) \nIntroduce the axioms [AX] from [Ban07\, Definition 4.1.13\, Remark 4.1.14 (i)] and prove that intersection cohomology is the unique sheaf satisfying these axioms [Ban07\, Theorem 4.2.1]. Prove independence of intersection cohomology from the stratification [Ban07\, Theorem 4.3.1]. \nhttps://uni-mainz-de.zoom.us/j/64063305650?pwd=DfaEkoLgqOJRGRL9z6MDbluM5cHMtx.1 \nMeeting-ID: 640 6330 5650 \nKenncode: 384917
URL:https://crc326gaus.de/event/gaus-ag-5/
LOCATION:Mainz and zoom
CATEGORIES:GAUS-AG
ORGANIZER;CN="Georg Tamme":MAILTO:georg.tamme@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261117T135000
DTEND;TZID=Europe/Berlin:20261117T152000
DTSTAMP:20261019T085610Z
CREATED:20260917T130535Z
LAST-MODIFIED:20261019T085610Z
UID:14160-1794923400-1794928800@crc326gaus.de
SUMMARY:Langlands Duality for Hitchin Systems
DESCRIPTION:Talk 5: The sheaves\nVukasin Mihajlovic (TU Darmstadt) \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/langlands-duality-for-hitchin-systems-5/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261119T090000
DTEND;TZID=Europe/Berlin:20261119T110000
DTSTAMP:20261021T115819Z
CREATED:20260916T125532Z
LAST-MODIFIED:20261021T115819Z
UID:14089-1795078800-1795086000@crc326gaus.de
SUMMARY:Elementary anabelian varieties are anabelian
DESCRIPTION:Talk 6: Immanuel Klevesath (Universität Heidelberg): Elasticity of̂ 𝜋_1
URL:https://crc326gaus.de/event/elementary-anabelian-varieties-are-anabelian-6/
LOCATION:Heidelberg\, Mathematikon\, SR 8\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261119T111500
DTEND;TZID=Europe/Berlin:20261119T124500
DTSTAMP:20261014T111839Z
CREATED:20260930T093039Z
LAST-MODIFIED:20261014T111839Z
UID:14313-1795086900-1795092300@crc326gaus.de
SUMMARY:The 6-Functor Formalism and finiteness/duality for (\varphi\, \Gamma)-modules
DESCRIPTION:Talk 6: Marco Artusa (Universität Heidelberg): \nConstruction of analytic and solid Huber stacks
URL:https://crc326gaus.de/event/the-6-functor-formalism-and-finiteness-duality-for-varphi-gamma-modules-6/
LOCATION:Heidelberg\, Mathematikon\, SR 8\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261119T133000
DTEND;TZID=Europe/Berlin:20261119T150000
DTSTAMP:20261006T120906Z
CREATED:20261006T120827Z
LAST-MODIFIED:20261006T120906Z
UID:14416-1795095000-1795100400@crc326gaus.de
SUMMARY:The Northcott Property in the Q-Isogeny Class of an Abelian Variety
DESCRIPTION:13:30 – 15:00 Talk 5: Leonie Nienhaus (Goethe Universität): The Mumford–Tate conjecture for abelian varieties \n 
URL:https://crc326gaus.de/event/the-northcott-property-in-the-q-isogeny-class-of-an-abelian-variety-copy/
LOCATION:Frankfurt\, Robert-Mayer-Str. 6-8\, Raum 309
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261119T141500
DTEND;TZID=Europe/Berlin:20261119T151500
DTSTAMP:20261105T071558Z
CREATED:20260730T100933Z
LAST-MODIFIED:20261105T071558Z
UID:13891-1795097700-1795101300@crc326gaus.de
SUMMARY:AGTZ-Kolloquium
DESCRIPTION:Gordie Williamson (Sidney) \nTitle: Intersection cohomology over rings \nAbstract: Intersection (co)homology is a beautiful invariant of singular spaces\, e.g. singular  complex algebraic varieties. Over the rationals it satisfies a raft of strong properties (e.g.  Poincaré duality\, hard  Lefschetz\, pure Hodge structure\,…) which still seem like a miracle.  In their paper introducing these groups\, Goresky and MacPherson point out that (unlike the integral cohomology of smooth manifolds) it fails to satisfy Poincaré duality over the  integers. Subsequent sheaf theoretic approaches have clarified the situation\, and in fact  one can prove that there is no reasonable theory over the integers which satisfies Poincaré  duality. I will discuss intersection cohomology\, give several simple examples that illustrate  the theory. Then I will discuss work in progress with F. Klein and T. Fell where we introduce  self-dual theory over certain p-adic rings. Interestingly\, a self-dual theory exists if one is  allowed to add enough roots of p. We don’t quite know what to make of this\, but maybe  someone in the audience does…
URL:https://crc326gaus.de/event/agtz-kolloquium-14/
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:20261120T091500
DTEND;TZID=Europe/Berlin:20261120T104500
DTSTAMP:20261015T060945Z
CREATED:20261006T090710Z
LAST-MODIFIED:20261015T060945Z
UID:14381-1795166100-1795171500@crc326gaus.de
SUMMARY:The Kudla program
DESCRIPTION:Talk 4: Phillip Müller: Kudla–Millson theory
URL:https://crc326gaus.de/event/the-kudla-program-5/
LOCATION:Heidelberg\, Mathematikon\, SR 8\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
ORGANIZER;CN="Gebhard B%C3%B6ckle":MAILTO:gebhard.boeckle iwr.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261120T133000
DTEND;TZID=Europe/Berlin:20261120T143000
DTSTAMP:20261106T143610Z
CREATED:20261106T143518Z
LAST-MODIFIED:20261106T143610Z
UID:14822-1795181400-1795185000@crc326gaus.de
SUMMARY:Eigenvarieties and p-adic rigidity for GSp4
DESCRIPTION:Charlotte Clare-Hunt (University of Oxford) \nThere has been substantial progress in the construction of eigenvarieties and p-adic families of automorphic forms\, and their relationship with Selmer groups and (p-adic) L-functions. In this talk I will introduce some of these constructions\, starting with the interpolation of modular forms\, and the concept of complete p-adic rigidity: the non-existence of nontrivial p-adic deformations. I will explain some of the techniques used to study the geometry of eigenvarieties\, and how these specialise to show that certain noncuspidal ‘Saito—Kurokawa’ points are completely p-adically rigid. If time permits\, I will also briefly outline how similar strategies may be used to construct p-adic families through cuspidal\, nonholomorphic Saito—Kurokawa points and to produce nontrivial Selmer classes predicted by the Bloch—Kato conjecture.
URL:https://crc326gaus.de/event/eigenvarieties-and-p-adic-rigidity-for-gsp4/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261120T153000
DTEND;TZID=Europe/Berlin:20261120T170000
DTSTAMP:20260921T072700Z
CREATED:20260917T124004Z
LAST-MODIFIED:20260921T072700Z
UID:14136-1795188600-1795194000@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Jelena Ivančić (MPIM): tba \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl)
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-45/
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:20261124T104500
DTEND;TZID=Europe/Berlin:20261124T114500
DTSTAMP:20261027T070550Z
CREATED:20261021T101702Z
LAST-MODIFIED:20261027T070550Z
UID:14623-1795517100-1795520700@crc326gaus.de
SUMMARY:Seminar on Perverse Sheaves and Intersection Cohomology
DESCRIPTION:Talk 6: Intersection cohomology 3: Poincar´e duality (Klaus Mattis) \nProve the support and cosupport conditions for perverse sheaves [Dim04\,\nProposition 5.1.16]\, [KS90\, Proposition 10.2.4 and 10.2.5]. Recall Verdier duality for the six functor formalism of sheaves on topological spaces and the duality functor DX = hom(−\, ωX). Explain how duality interchanges j∗ and j!. Use the support and cosupport conditions to show how DX interchanges the p-connective and q-coconnective part of the perverse t-structure for complementary perversities p and q(n) = −n − p(n). From this\, prove that DXICp(L) ≃ ICq(L∨)\, where L∨ is the dual local system of L and deduce Poincar´e duality for intersection cohomology. Also see [Ban07\, Theorem 4.4.1]. \nhttps://uni-mainz-de.zoom.us/j/64063305650?pwd=DfaEkoLgqOJRGRL9z6MDbluM5cHMtx.1 \nMeeting-ID: 640 6330 5650 \nKenncode: 384917
URL:https://crc326gaus.de/event/gaus-ag-6/
LOCATION:Mainz and zoom
CATEGORIES:GAUS-AG
ORGANIZER;CN="Georg Tamme":MAILTO:georg.tamme@uni-mainz.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261124T135000
DTEND;TZID=Europe/Berlin:20261124T152000
DTSTAMP:20261019T085630Z
CREATED:20260917T130742Z
LAST-MODIFIED:20261019T085630Z
UID:14166-1795528200-1795533600@crc326gaus.de
SUMMARY:Langlands Duality for Hitchin Systems
DESCRIPTION:Talk 6: Cohomology of j∗A\nThiago Solovera e Nery (TU Darmstadt) \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/langlands-duality-for-hitchin-systems-copy/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261126T090000
DTEND;TZID=Europe/Berlin:20261126T110000
DTSTAMP:20260916T125706Z
CREATED:20260916T125706Z
LAST-MODIFIED:20260916T125706Z
UID:14091-1795683600-1795690800@crc326gaus.de
SUMMARY:Elementary anabelian varieties are anabelian
DESCRIPTION:Talk 7: tbd: The factorisation lemma
URL:https://crc326gaus.de/event/elementary-anabelian-varieties-are-anabelian-7/
LOCATION:Heidelberg\, Mathematikon\, SR 8\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
END:VCALENDAR