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X-WR-CALDESC:Events for CRC 326 - GAUS
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TZID:Europe/Berlin
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TZOFFSETFROM:+0100
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220707T140000
DTEND;TZID=Europe/Berlin:20220707T160000
DTSTAMP:20260405T202753
CREATED:20220620T073648Z
LAST-MODIFIED:20220627T064151Z
UID:3151-1657202400-1657209600@crc326gaus.de
SUMMARY:A non-hyperpergeometric E-function
DESCRIPTION:
URL:https://crc326gaus.de/event/t-b-a-2/
LOCATION:Mainz\, Hilbertraum (05-432) and Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220707T111500
DTEND;TZID=Europe/Berlin:20220707T121500
DTSTAMP:20260405T202753
CREATED:20220512T084802Z
LAST-MODIFIED:20220512T084802Z
UID:2995-1657192500-1657196100@crc326gaus.de
SUMMARY:The étale comparison Theorem and applications
DESCRIPTION:GAUS AG: Prismatic Cohomology (Talk 9) \nAmine Koubaa (Heidelberg)
URL:https://crc326gaus.de/event/the-etale-comparison-theorem-and-applications/
LOCATION:Heidelberg\, MATHEMATIKON\, Hörsaal
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220705T140000
DTEND;TZID=Europe/Berlin:20220705T153000
DTSTAMP:20260405T202753
CREATED:20220411T094630Z
LAST-MODIFIED:20220411T094630Z
UID:2582-1657029600-1657035000@crc326gaus.de
SUMMARY:Seminar on étale motives
DESCRIPTION:Talk 12: Interlude on Chow groups
URL:https://crc326gaus.de/event/seminar-on-etale-motives-13/
LOCATION:Darmstadt and Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220701T140000
DTEND;TZID=Europe/Berlin:20220701T173000
DTSTAMP:20260405T202753
CREATED:20220411T114804Z
LAST-MODIFIED:20220629T130220Z
UID:2599-1656684000-1656696600@crc326gaus.de
SUMMARY:The geometry of coherent sheaves: From derived categories to Higgs bundles
DESCRIPTION:GAUS-Workshop: “P=W conjecture”\n14:00-15:00: Jochen Heinloth (Duisburg-Essen)\n Introduction to the P=W conjecture\n15:15-16:15: Junliang Shen (Yale)\nSymmetries of cohomology of Hitchin moduli spaces and the P=W conjecture\n16:30-17:30: Naoki Koseki (Edinburgh)\nCohomological chi-independence for Higgs bundles and Donaldson-Thomas invariants
URL:https://crc326gaus.de/event/the-geometry-of-coherent-sheaves-from-derived-categories-to-higgs-bundles-3/
LOCATION:Frankfurt and Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220701T140000
DTEND;TZID=Europe/Berlin:20220701T153000
DTSTAMP:20260405T202753
CREATED:20220628T081233Z
LAST-MODIFIED:20220628T081233Z
UID:3210-1656684000-1656689400@crc326gaus.de
SUMMARY:Hecke orbits on Shimura varieties of Hodge type
DESCRIPTION:Oort conjectured in 1995 that isogeny classes in the moduli space A_g of principally polarised abelian varieties in characteristic p are Zariski dense in the Newton strata containing them. There is a straightforward generalisation of this conjecture to the special fibres of Shimura varieties of Hodge type\, and in this talk\, I will present a proof of this conjecture.  I will mostly focus on the case of A_g since most of the new ideas can already be explained in this special case. This is joint work with Marco D'Addezio.\nMeeting-ID: 635 7328 0984\nPassword: 100003
URL:https://crc326gaus.de/event/hecke-orbits-on-shimura-varieties-of-hodge-type/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220701T133000
DTEND;TZID=Europe/Berlin:20220701T150000
DTSTAMP:20260405T202753
CREATED:20220624T153750Z
LAST-MODIFIED:20220624T153750Z
UID:3206-1656682200-1656687600@crc326gaus.de
SUMMARY:A descent principle for compact support cohomology theories
DESCRIPTION:Josefien Kuijper (Stockholms universitet)
URL:https://crc326gaus.de/event/a-descent-principle-for-compact-support-cohomology-theories/
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:20220630T163000
DTEND;TZID=Europe/Berlin:20220630T173000
DTSTAMP:20260405T202753
CREATED:20220330T113414Z
LAST-MODIFIED:20220621T224707Z
UID:2520-1656606600-1656610200@crc326gaus.de
SUMMARY:Heights on arbitrary Shimura Varieties and Tori
DESCRIPTION:GAUS AG: The André-Oort conjecture (Talk 12) \nJacob Tsimerman (University of Toronto) \nAbstract: We explain how to prove upper bounds for heights of special points on arbitrary Shimura Varieties\, completing the proof after the work of Binyamini-Schmidt-Yafaev. The proof in fact reduces to the case of A_g\, and thus requires a comparison of height functions between distinct Shimura varieties. To facilitate this\, we introduce a  canonical height function corresponding to automorphic vector bundles on it and explain their functorial properties. This is achieved using relative p-adic Hodge theory\, combining the de-Rham and crystalline formalisms. This also reduces the question of bounding these canonical heights in  0-dimensional settings. Finally\, we explain how a trick of Deligne allows us to conclude this case using functoriality and the Abelian case.
URL:https://crc326gaus.de/event/tbd/
LOCATION:Darmstadt and Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220630T151500
DTEND;TZID=Europe/Berlin:20220630T161500
DTSTAMP:20260405T202753
CREATED:20220330T113253Z
LAST-MODIFIED:20220422T141256Z
UID:2518-1656602100-1656605700@crc326gaus.de
SUMMARY:The André-Oort conjecture for A_g : Galois lower bounds for CM abelian varieties - after Tsimerman and Binyamini-Schmidt-Yafaev.
DESCRIPTION:GAUS AG: The André-Oort conjecture (Talk 11) \nYingkun Li (TU Darmstadt)
URL:https://crc326gaus.de/event/the-andre-oort-conjecture-for-a-g-galois-lower-bounds-for-cm-abelian-varieties-after-tsimerman-and-binyamini-schmidt-yafaev/
LOCATION:Darmstadt and Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220630T111500
DTEND;TZID=Europe/Berlin:20220630T121500
DTSTAMP:20260405T202753
CREATED:20220512T084606Z
LAST-MODIFIED:20220512T084606Z
UID:2993-1656587700-1656591300@crc326gaus.de
SUMMARY:Perfectoidization
DESCRIPTION:GAUS AG: Prismatic Cohomology (Talk 8) \nJakob Burgi (Heidelberg)
URL:https://crc326gaus.de/event/perfectoidization/
LOCATION:Heidelberg\, MATHEMATIKON\, Hörsaal
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220629T160000
DTEND;TZID=Europe/Berlin:20220629T170000
DTSTAMP:20260405T202753
CREATED:20220509T111933Z
LAST-MODIFIED:20220613T085145Z
UID:2943-1656518400-1656522000@crc326gaus.de
SUMMARY:What is a building and why should one care?
DESCRIPTION:Oberseminar Algebra und Geometrie \nPetra Schwer (Otto-von-Guericke-Universität Magdeburg) \nAbstract:\nGroups like GL_n\, SL_n or SP_n  play an important role in many areas of mathematics. It has been known for a long time that some of their properties (when studied over the reals or complex numbers) are best understood via the associated symmetric spaces. Jaques Tits later introduced buildings as a tool to study the respective groups over other field and developed\, together with Bruhat\, a theory that also captures reductive groups evaluated over non-archimedian local fields with discrete valuations\, like the p-adic numbers. \nIn this talk I will explain how some of the subgroup structures of such a reductive group over a non-Archimedian local field can be explained via Coxeter combinatorics and the geometry of an (affine) Bruhat-Tits building\, its apartments and retractions. The building for example simultaneously encodes the (affine) flag variety and (affine) Grassmannian associated to the group. But it also permits to explain more complicated structures such as representation theoretic data or other associated varieties in purely combinatorial terms.
URL:https://crc326gaus.de/event/tba-6/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220628T160000
DTEND;TZID=Europe/Berlin:20220628T170000
DTSTAMP:20260405T202753
CREATED:20220509T104514Z
LAST-MODIFIED:20220509T104514Z
UID:2938-1656432000-1656435600@crc326gaus.de
SUMMARY:International Seminar on Automorphic Forms
DESCRIPTION:
URL:https://crc326gaus.de/event/international-seminar-on-automorphic-forms-8/
LOCATION:Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220628T140000
DTEND;TZID=Europe/Berlin:20220628T153000
DTSTAMP:20260405T202753
CREATED:20220411T094516Z
LAST-MODIFIED:20220411T094516Z
UID:2580-1656424800-1656430200@crc326gaus.de
SUMMARY:Seminar on étale motives
DESCRIPTION:Talk 11: Motives and h-descent- Thibaud van den Hove (TU darmstadt)
URL:https://crc326gaus.de/event/seminar-on-etale-motives-12/
LOCATION:Darmstadt
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220624T133000
DTEND;TZID=Europe/Berlin:20220624T150000
DTSTAMP:20260405T202753
CREATED:20220617T113551Z
LAST-MODIFIED:20220617T113642Z
UID:3145-1656077400-1656082800@crc326gaus.de
SUMMARY:On geometric linear and quadratic Chabauty
DESCRIPTION:Pim Spelier (Universiteit Leiden)
URL:https://crc326gaus.de/event/on-geometric-linear-and-quadratic-chabauty/
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:20220623T163000
DTEND;TZID=Europe/Berlin:20220623T173000
DTSTAMP:20260405T202753
CREATED:20220330T112801Z
LAST-MODIFIED:20220422T141357Z
UID:2516-1656001800-1656005400@crc326gaus.de
SUMMARY:The André-Oort conjecture.
DESCRIPTION:GAUS AG: The André-Oort conjecture (Talk 10) \nRiccardo Zuffetti (TU Darmstadt)
URL:https://crc326gaus.de/event/the-andre-oort-conjecture/
LOCATION:Frankfurt and Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220623T151500
DTEND;TZID=Europe/Berlin:20220623T161500
DTSTAMP:20260405T202753
CREATED:20220330T112628Z
LAST-MODIFIED:20220422T141430Z
UID:2514-1655997300-1656000900@crc326gaus.de
SUMMARY:Bi-algebraic geometry: an introduction.
DESCRIPTION:GAUS AG: The André-Oort conjecture (Talk 9) \nYiu Man Wong (Goethe University)
URL:https://crc326gaus.de/event/bi-algebraic-geometry-an-introduction/
LOCATION:Frankfurt and Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220623T111500
DTEND;TZID=Europe/Berlin:20220623T121500
DTSTAMP:20260405T202753
CREATED:20220512T084430Z
LAST-MODIFIED:20220512T084430Z
UID:2991-1655982900-1655986500@crc326gaus.de
SUMMARY:Extending prismatic cohomology to the singular case
DESCRIPTION:GAUS AG: Prismatic Cohomology (Talk 7) \nSriram Chinthalagiri Ventaka (Heidelberg)
URL:https://crc326gaus.de/event/extending-prismatic-cohomology-to-the-singular-case/
LOCATION:Heidelberg\, MATHEMATIKON\, Hörsaal
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220621T160000
DTEND;TZID=Europe/Berlin:20220621T170000
DTSTAMP:20260405T202753
CREATED:20220509T104355Z
LAST-MODIFIED:20220509T104355Z
UID:2936-1655827200-1655830800@crc326gaus.de
SUMMARY:International Seminar on Automorphic Forms
DESCRIPTION:
URL:https://crc326gaus.de/event/international-seminar-on-automorphic-forms-7/
LOCATION:Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220621T140000
DTEND;TZID=Europe/Berlin:20220621T153000
DTSTAMP:20260405T202753
CREATED:20220411T094355Z
LAST-MODIFIED:20220411T094355Z
UID:2578-1655820000-1655825400@crc326gaus.de
SUMMARY:Seminar on étale motives
DESCRIPTION:Talk 10: Torsion étale motives – tba
URL:https://crc326gaus.de/event/seminar-on-etale-motives-11/
LOCATION:Darmstadt and Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220615T160000
DTEND;TZID=Europe/Berlin:20220615T170000
DTSTAMP:20260405T202753
CREATED:20220414T080523Z
LAST-MODIFIED:20220623T090714Z
UID:2700-1655308800-1655312400@crc326gaus.de
SUMMARY:Gorenstein 3-Fanos von Picardzahl 1 mit einer 2-Torus Wirkung;  Gorenstein Fano 3-folds of Picard number 1 with a 2-torus action
DESCRIPTION:Oberseminar Algebra und Geometrie \nAndreas Bäuerle (Univ. Tübingen) \nAbstract: Wir klassifizieren die dreidimensionalen\, nichttorischen\, Q-faktoriellen\, log terminalen\, Gorenstein Fano Varietäten von Picardzahl eins\, die eine effektive Wirkung eines zweidimensionalen Torus besitzen. \nWe classify the non-toric\, Q-factorial\, log terminal\, Gorenstein Fano threefolds of Picard number one that admit an effective action of a two-dimensional torus. \n  \n  \n  \n  \n 
URL:https://crc326gaus.de/event/tba-4/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220615T121500
DTEND;TZID=Europe/Berlin:20220615T160000
DTSTAMP:20260405T202753
CREATED:20220509T082612Z
LAST-MODIFIED:20220526T065354Z
UID:2749-1655295300-1655308800@crc326gaus.de
SUMMARY:“Anabelian” criterion for good reduction
DESCRIPTION:GAUS-AG anabelian geometry on “The Grothendieck conjecture for affine curves” \n12:15-13:45: Katharina Hübner (Heidelberg University)\, talk 10\n14:30-16:00: Marcin Lara (Goethe University)\, talk 11
URL:https://crc326gaus.de/event/anabelian-criterion-for-good-reduction/
LOCATION:Frankfurt (Hörsaal 16)
CATEGORIES:GAUS-AG
ORGANIZER;CN="Tim Holzschuh":MAILTO:tholzschuh@mathi.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220614T160000
DTEND;TZID=Europe/Berlin:20220614T170000
DTSTAMP:20260405T202753
CREATED:20220509T104219Z
LAST-MODIFIED:20220509T104219Z
UID:2934-1655222400-1655226000@crc326gaus.de
SUMMARY:International Seminar on Automorphic Forms
DESCRIPTION:
URL:https://crc326gaus.de/event/international-seminar-on-automorphic-forms-6/
LOCATION:Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220614T140000
DTEND;TZID=Europe/Berlin:20220614T153000
DTSTAMP:20260405T202753
CREATED:20220411T094238Z
LAST-MODIFIED:20220411T094238Z
UID:2576-1655215200-1655220600@crc326gaus.de
SUMMARY:Seminar on étale motives
DESCRIPTION:Talk 9: Étale sheaves with transfers – tba
URL:https://crc326gaus.de/event/seminar-on-etale-motives-10/
LOCATION:Darmstadt and Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220610T161500
DTEND;TZID=Europe/Berlin:20220610T171500
DTSTAMP:20260405T202753
CREATED:20220530T073812Z
LAST-MODIFIED:20220601T070242Z
UID:3074-1654877700-1654881300@crc326gaus.de
SUMMARY:The combinatorics of the Brill-Noether Theory of general covers
DESCRIPTION:TGiZ-Seminar: Tropical geometry in Zoom (Second meeting Summer Semester 2022) \nKaelin Cook-Powell (Emory University) \nAbstract:\nThe study of line bundles on algebraic curves has historically had deep connections with combinatorics. For example\, standard young tableaux have been used to study line bundles of sufficiently general curves. Recently a variation of tableaux\, known as k-uniform displacement tableaux\, have been used to study line bundles of general covers — that is curves general in the Hurwitz space. We will discuss how these displacement tableaux relate to line bundles of general covers and examine how they are used to produce new results in Brill-Noether Theory.
URL:https://crc326gaus.de/event/the-combinatorics-of-the-brill-noether-theory-of-general-covers/
LOCATION:Frankfurt and Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220610T150000
DTEND;TZID=Europe/Berlin:20220610T160000
DTSTAMP:20260405T202753
CREATED:20220530T073537Z
LAST-MODIFIED:20220601T070145Z
UID:3072-1654873200-1654876800@crc326gaus.de
SUMMARY:Brill-Noether Theory over the Hurwitz Space
DESCRIPTION:TGiZ-Seminar: Tropical geometry in Zoom (Second meeting Summer Semester 2022) \nDave Jensen (University of Kentucky) \nAbstract:\nBrill-Noether theory is the study of line bundles on algebraic curves. A series of results in the 80’s describe the varieties parameterizing line bundles with given invariants on a sufficiently general curve. More recently\, several mathematicians have turned their attention to the Brill-Noether theory of general covers — that is\, curves that are general in the Hurwitz space rather than in the moduli space of curves. We will survey these recent results and\, time permitting\, some generalizations.
URL:https://crc326gaus.de/event/brill-noether-theory-over-the-hurwitz-space/
LOCATION:Frankfurt and Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220610T133000
DTEND;TZID=Europe/Berlin:20220610T150000
DTSTAMP:20260405T202753
CREATED:20220603T120910Z
LAST-MODIFIED:20220603T120910Z
UID:3097-1654867800-1654873200@crc326gaus.de
SUMMARY:Main conjectures and p-adic Stark conjectures for Artin motives
DESCRIPTION:Dr. Alexandre Maksoud\, Université du Luxembourg
URL:https://crc326gaus.de/event/main-conjectures-and-p-adic-stark-conjectures-for-artin-motives/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220609T140000
DTEND;TZID=Europe/Berlin:20220609T160000
DTSTAMP:20260405T202753
CREATED:20220518T112552Z
LAST-MODIFIED:20220620T073936Z
UID:3060-1654783200-1654790400@crc326gaus.de
SUMMARY:The wild ramification locus
DESCRIPTION:
URL:https://crc326gaus.de/event/t-b-a/
LOCATION:Mainz\, Hilbertraum (05-432) and Zoom
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220609T111500
DTEND;TZID=Europe/Berlin:20220609T121500
DTSTAMP:20260405T202753
CREATED:20220512T084225Z
LAST-MODIFIED:20220512T084225Z
UID:2989-1654773300-1654776900@crc326gaus.de
SUMMARY:A special case of the Hodge-Tate comparison Theorem
DESCRIPTION:GAUS AG: Prismatic Cohomology (Talk 6) \nOtmar Venjakob (Heidelberg)
URL:https://crc326gaus.de/event/a-special-case-of-the-hodge-tate-comparison-theorem/
LOCATION:Heidelberg\, MATHEMATIKON\, Hörsaal
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220608T113000
DTEND;TZID=Europe/Berlin:20220608T173000
DTSTAMP:20260405T202753
CREATED:20220421T070941Z
LAST-MODIFIED:20220421T070941Z
UID:2740-1654687800-1654709400@crc326gaus.de
SUMMARY:The Grothendieck conjecture for curves over finite fields
DESCRIPTION:GAUS-AG anabelian geometry on “The Grothendieck conjecture for affine curves” \n11:30-13:00: Amine Koubaa (Heidelberg University)\, talk 7\n14:15-15:45: Amine Koubaa (Heidelberg University)\, talk 8\n16:00-17:30: Tim Holzschuh (Heidelberg University)\, talk 9
URL:https://crc326gaus.de/event/the-grothendieck-conjecture-for-curves-over-finite-fields/
LOCATION:Heidelberg\, Mathematikon\, SR tba
CATEGORIES:GAUS-AG
ORGANIZER;CN="Tim Holzschuh":MAILTO:tholzschuh@mathi.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220607T140000
DTEND;TZID=Europe/Berlin:20220607T153000
DTSTAMP:20260405T202753
CREATED:20220411T093806Z
LAST-MODIFIED:20220411T093806Z
UID:2573-1654610400-1654615800@crc326gaus.de
SUMMARY:Seminar on étale motives
DESCRIPTION:Talk 8: Interlude on finite correspondences – tba
URL:https://crc326gaus.de/event/seminar-on-etale-motives-9/
LOCATION:Darmstadt and Zoom
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20220607T090000
DTEND;TZID=Europe/Berlin:20220607T100000
DTSTAMP:20260405T202753
CREATED:20220509T104104Z
LAST-MODIFIED:20220607T084651Z
UID:2932-1654592400-1654596000@crc326gaus.de
SUMMARY:International Seminar on Automorphic Forms
DESCRIPTION:Determination of modular forms is one of the fundamental and interesting problems in number theory. It is known that if the Hecke eigenvalues of two newforms agree for all but finitely many primes\, then both the forms are the same. In other words\, the set of Hecke eigenvalues at primes determines the newform uniquely and this result is known as the multiplicity one theorem. In the case of Siegel cuspidal eigenforms of degree two\, the multiplicity one theorem has been proved only recently in 2018 by Schmidt. In this talk\, we refine the result of Schmidt by showing that if the Hecke eigenvalues of two Siegel eigenforms of level 1 agree at a set of primes of positive density\, then the eigenforms are the same (up to a constant). We also distinguish Siegel eigenforms from the signs of their Hecke eigenvalues. The main ingredient to prove these results are Galois representations attached to Siegel eigenforms\, the Chebotarev density theorem and some analytic properties of associated L-functions.
URL:https://crc326gaus.de/event/international-seminar-on-automorphic-forms-5/
LOCATION:Zoom
CATEGORIES:GAUS-AG
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