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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250115T120000
DTEND;TZID=Europe/Berlin:20250115T133000
DTSTAMP:20260404T000040
CREATED:20241209T084445Z
LAST-MODIFIED:20241209T084445Z
UID:10118-1736942400-1736947800@crc326gaus.de
SUMMARY:Hodge Theory
DESCRIPTION:
URL:https://crc326gaus.de/event/hodge-theory-5/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250116T140000
DTEND;TZID=Europe/Berlin:20250116T173000
DTSTAMP:20260404T000040
CREATED:20241105T091423Z
LAST-MODIFIED:20241120T135241Z
UID:9646-1737036000-1737048600@crc326gaus.de
SUMMARY:Anabelian geometry - Mochizuki’s proof of the Hom-Conjecture [d’après Faltings]
DESCRIPTION:14:00 – 15:30 Talk 6: Ruth Wild (Goethe Universität): Hodge-Tate sections are geometric up to torsion \nCoffee break \n16:00 – 17:30 Talk 7: Benjamin Steklov (Goethe Universität): Preparations for Proposition 11: 𝑝-divisible groups
URL:https://crc326gaus.de/event/anabelian-geometry-mochizukis-proof-of-the-hom-conjecture-dapres-faltings-3/
LOCATION:Heidelberg
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250117T090000
DTEND;TZID=Europe/Berlin:20250117T110000
DTSTAMP:20260404T000040
CREATED:20241211T124139Z
LAST-MODIFIED:20241211T124139Z
UID:10155-1737104400-1737111600@crc326gaus.de
SUMMARY:Congruence Modules and the Wiles–Lenstra–Diamond Numerical Criterion in Higher Codimension
DESCRIPTION:Gebhard Böckle (Universität Heidelberg): Galois deformation conditions
URL:https://crc326gaus.de/event/congruence-modules-and-the-wiles-lenstra-diamond-numerical-criterion-in-higher-codimension-8/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250117T110000
DTEND;TZID=Europe/Berlin:20250117T120000
DTSTAMP:20260404T000040
CREATED:20250115T094515Z
LAST-MODIFIED:20250115T094515Z
UID:10430-1737111600-1737115200@crc326gaus.de
SUMMARY:Cones of Noether--Lefschetz divisors
DESCRIPTION:Dr. Brandon Williams\, Universität Heidelberg
URL:https://crc326gaus.de/event/cones-of-noether-lefschetz-divisors/
LOCATION:Heidelberg\, MATHEMATIKON\, SR 10\, INF 205\, Heidelberg\, 69124\, Germany
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Georg Bernhard Oberdieck":MAILTO:georgo@uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250117T143000
DTEND;TZID=Europe/Berlin:20250117T153000
DTSTAMP:20260404T000040
CREATED:20241113T130950Z
LAST-MODIFIED:20250120T093006Z
UID:9836-1737124200-1737127800@crc326gaus.de
SUMMARY:The tropical 1-fold Abel-Prym map
DESCRIPTION:TGiF-Seminar: Tropical geometry in Frankfurt (First meeting Winter Semester 2024/25) \nGiusi Capobianco (Università di Roma Tor Vergata)\n\n\n\nAbstract: The algebraic Abel-Prym map relates the geometry of a double cover of algebraic curves with their corresponding Prym varieties. Birkenhake and Lange proved that the map has degree 2 if and only if the cover curve is hyperelliptic.\n\nIn the talk I will present joint work with Yoav Len\, in which we investigate the 1-fold Abel-Prym map in the tropical setting and prove similar results. I will describe a new combinatorial construction of hyperelliptic double covers of metric graphs and prove that the tropical Abel-Prym map is a harmonic morphism of degree 2.  Furthermore\, we will see that the Jacobian of the image of this map is isomorphic\, as pptav\, to the Prym variety of the cover. When the double cover is not hyperelliptic however\, contrary to the algebraic result\, the tropical Abel-Prym map is almost never injective. I will provide counterexamples and discuss its image.
URL:https://crc326gaus.de/event/tba-129/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250117T153000
DTEND;TZID=Europe/Berlin:20250117T170000
DTSTAMP:20260404T000040
CREATED:20241016T113027Z
LAST-MODIFIED:20250113T101756Z
UID:9360-1737127800-1737133200@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Jens Eberhardt (Gutenberg Universität Mainz): K-motives and Local Langlands \nIn this talk\, we construct a geometric realization of the category of representations of the affine Hecke algebra and p-adic reductive groups.\nFor this\, we introduce a formalism of K-theoretic sheaves (called K-motives) on stacks.\nThe affine Hecke algebra arises from the K-theory of the Steinberg stack\, and we explain how to “categorify” this using K-motives. \nLastly\, we discuss applications of K-motives to the local geometric Langlands program. \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-19/
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:20250117T160000
DTEND;TZID=Europe/Berlin:20250117T170000
DTSTAMP:20260404T000040
CREATED:20241113T131043Z
LAST-MODIFIED:20250106T084617Z
UID:9838-1737129600-1737133200@crc326gaus.de
SUMMARY:Tree spaces in tropical geometry
DESCRIPTION:TGiF-Seminar: Tropical geometry in Frankfurt (First meeting Winter Semester 2024/25) \nShelby Cox (MPI Leipzig)\n\nAbstract: The space of phylogenetic trees on n leaves arises naturally in tropical geometry through the tropical Grassmannian trop Gr(2\,n). The space of equidistant trees on n leaves is the tropicalization of M_{0\,n}\, which is tropically convex. In this talk\, I will present recent work using tropical tree spaces for phylogenetic statistics and inference (joint with Curiel\, Sabol\, Talbut\, and Yoshida). I will also discuss a conjectural analogue of the space of equidistant trees for type C (joint with Igor Makhlin).
URL:https://crc326gaus.de/event/tba-130/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20250120
DTEND;VALUE=DATE:20250121
DTSTAMP:20260404T000040
CREATED:20241216T101732Z
LAST-MODIFIED:20241216T101732Z
UID:10235-1737331200-1737417599@crc326gaus.de
SUMMARY:Junior AG
DESCRIPTION:Maps between spherical group rings \n 
URL:https://crc326gaus.de/event/junior-ag-3/
LOCATION:Mainz
CATEGORIES:GAUS-Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250121T140000
DTEND;TZID=Europe/Berlin:20250121T153000
DTSTAMP:20260404T000040
CREATED:20241108T103435Z
LAST-MODIFIED:20250113T132259Z
UID:9774-1737468000-1737473400@crc326gaus.de
SUMMARY:Vector bundles on curves
DESCRIPTION:Thibaud van den Hove (TU Darmstadt): Algebraicity of BunX\,n \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/vector-bundles-on-curves-8/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250121T160000
DTEND;TZID=Europe/Berlin:20250121T170000
DTSTAMP:20260404T000040
CREATED:20241016T115009Z
LAST-MODIFIED:20250113T074437Z
UID:9397-1737475200-1737478800@crc326gaus.de
SUMMARY:Kudla-Millson lift on the symmetric space of SL_N
DESCRIPTION:International Seminar on Automorphic Forms \nRomain Branchereau (McGill University): Kudla-Millson lift on the symmetric space of SL_N \nI will present a construction of a map from the homology in degree N-1 of locally symmetric spaces associated to SL_N\, to modular forms of weight N. The image of a cycle C by this map is a modular form whose Fourier coefficients are intersection numbers between C and a family of generalized modular symbols on the locally symmetric space. This map can be seen as a Kudla-Millson theta lift for the dual pair (SL_N\, SL_2) and also resembles a construction of Bergeron-Charollois-Garcia. \nhttps://tu-darmstadt.zoom.us/j/68048280736 \nThe password is the first Fourier coefficient of the modular j-function (as digits) \n 
URL:https://crc326gaus.de/event/tba-124/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250122T120000
DTEND;TZID=Europe/Berlin:20250122T133000
DTSTAMP:20260404T000040
CREATED:20241209T084614Z
LAST-MODIFIED:20241211T140129Z
UID:10120-1737547200-1737552600@crc326gaus.de
SUMMARY:Hodge Theory
DESCRIPTION:Klaus Mattis (Universität Mainz): Mixed Hodge structures on smooth varieties II
URL:https://crc326gaus.de/event/hodge-theory-6/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250123T140000
DTEND;TZID=Europe/Berlin:20250123T163000
DTSTAMP:20260404T000040
CREATED:20250113T085635Z
LAST-MODIFIED:20250113T085635Z
UID:10391-1737640800-1737649800@crc326gaus.de
SUMMARY:Moduli of Quiver Representations and GIT Quotients
DESCRIPTION:14:00 – 15:00 Talk 5.1: Martin Ulirsch (Goethe Universität): Algebraic Aspects of Stability \nCoffee break \n15:30 – 16:30 Talk 5.2: Andrei Bud (Goethe Universität): Further Geometric Properties of Quiver Moduli
URL:https://crc326gaus.de/event/moduli-of-quiver-representations-and-git-quotients-5/
LOCATION:Frankfurt\, Rober-Mayer-Str. 10\, Raum 711 klein
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250124T090000
DTEND;TZID=Europe/Berlin:20250124T110000
DTSTAMP:20260404T000040
CREATED:20241211T124329Z
LAST-MODIFIED:20250117T132458Z
UID:10157-1737709200-1737716400@crc326gaus.de
SUMMARY:Congruence Modules and the Wiles–Lenstra–Diamond Numerical Criterion in Higher Codimension
DESCRIPTION:Andrea Conti (Universität Heidelberg): Hecke eigensystems and Galois representations for PGL_2
URL:https://crc326gaus.de/event/congruence-modules-and-the-wiles-lenstra-diamond-numerical-criterion-in-higher-codimension-9/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250124T110000
DTEND;TZID=Europe/Berlin:20250124T120000
DTSTAMP:20260404T000040
CREATED:20241202T131319Z
LAST-MODIFIED:20250117T132140Z
UID:10048-1737716400-1737720000@crc326gaus.de
SUMMARY:Cycles on the moduli space of abelian varieties
DESCRIPTION:Prof. Dr. Rahul Pandharipande\, Department of Mathematics\, ETH Zürich \nI will explain developments in the study of cycles on the moduli space of abelian varieties with connections to the moduli space of curves\, the cohomology of the Lagrangian Grassmannian\, modular forms\, and the quantum cohomology of the Hilbert scheme of points of the plane.
URL:https://crc326gaus.de/event/tba-136/
LOCATION:Heidelberg\, MATHEMATIKON\, SR10\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Georg Bernhard Oberdieck":MAILTO:georgo@uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250124T133000
DTEND;TZID=Europe/Berlin:20250124T143000
DTSTAMP:20260404T000040
CREATED:20250110T134424Z
LAST-MODIFIED:20250110T134424Z
UID:10375-1737725400-1737729000@crc326gaus.de
SUMMARY:Abstract six-functor formalisms in Motivic Homotopy Theory
DESCRIPTION:Chirantan Chowdhury (TU Darmstadt) \nThe six functor formalism was formulated by Grothendieck to give a framework for the basic operations and duality statements for cohomology theories. In this talk\, I shall give an overview of abstract six-functor formalisms in the language of $\infty$-categories followed by its applications in the setting of Motivic Homotopy Theory. After introducing the setup\, we shall show how one can extend such formalism from smaller to larger categories (for e.g. : schemes to algebraic stacks). If time permits\, I would like to explain further extensions of such results to non-representable situations (joint work with Alessandro D’Angelo).
URL:https://crc326gaus.de/event/abstract-six-functor-formalisms-in-motivic-homotopy-theory/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Christian Dahlhausen":MAILTO:cdahlhausen@mathi.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250124T153000
DTEND;TZID=Europe/Berlin:20250124T170000
DTSTAMP:20260404T000040
CREATED:20241016T113122Z
LAST-MODIFIED:20250108T091826Z
UID:9361-1737732600-1737738000@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Maximilian Hauck (MPIM Bonn): Stacks in the p-adic Hodge theory of formal schemes \nI will briefly review the stacky approach to p-adic cohomology theories due to Bhatt–Lurie and Drinfeld using a new view on the filtered prismatisation recently found by Gardner–Madapusi. Then I will show how to use these tools to obtain a new proof of the Beilinson fibre square of Antieau–Mathew–Morrow–Nikolaus and a generalisation of a comparison theorem between rational arithmetic étale cohomology and crystalline cohomology of Colmez–Niziol. \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-20/
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:20250128T140000
DTEND;TZID=Europe/Berlin:20250128T153000
DTSTAMP:20260404T000040
CREATED:20241108T103538Z
LAST-MODIFIED:20241108T103547Z
UID:9777-1738072800-1738078200@crc326gaus.de
SUMMARY:Vector bundles on curves
DESCRIPTION:Paul Siemon: Geometry of BunX\,n \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/vector-bundles-on-curves-9/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250128T160000
DTEND;TZID=Europe/Berlin:20250128T170000
DTSTAMP:20260404T000040
CREATED:20241016T115059Z
LAST-MODIFIED:20250120T090118Z
UID:9406-1738080000-1738083600@crc326gaus.de
SUMMARY:Uniform Non-vanishing of Hilbert Modular L-values
DESCRIPTION:International Seminar on Automorphic Forms \nLiyang Yang (Princeton University):  Uniform Non-vanishing of Hilbert Modular L-values \nLet ℱ(k\,q) be the set of normalized Hilbert newforms of weight k and prime level q. In this talk\, we will present a uniform positive proportion of #{π∈ℱ(k\,q):L(1/2\,π)≠0} as #ℱ(k\,q)→+∞. This is joint work with Zhining Wei and Shifan Zhao. \nhttps://tu-darmstadt.zoom.us/j/68048280736 \nThe password is the first Fourier coefficient of the modular j-function (as digits) \n 
URL:https://crc326gaus.de/event/tba-125/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250129T120000
DTEND;TZID=Europe/Berlin:20250129T133000
DTSTAMP:20260404T000040
CREATED:20241209T084740Z
LAST-MODIFIED:20241211T140205Z
UID:10117-1738152000-1738157400@crc326gaus.de
SUMMARY:Hodge Theory
DESCRIPTION:Georg Tamme (Universität Mainz): Mixed Hodge structures on smooth varieties III
URL:https://crc326gaus.de/event/hodge-theory-7/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250130T140000
DTEND;TZID=Europe/Berlin:20250130T173000
DTSTAMP:20260404T000040
CREATED:20241105T091819Z
LAST-MODIFIED:20241120T141734Z
UID:9648-1738245600-1738258200@crc326gaus.de
SUMMARY:Anabelian geometry - Mochizuki’s proof of the Hom-Conjecture [d’après Faltings]
DESCRIPTION:14:00 – 15:30 Talk 8: Amine Koubaa (Goethe Universität): Preparations for Proposition 11: the Tate conjecture \nCoffee break \n16:00 – 17:30 Talk 9: Magnus Carlson (Goethe Universität): Sections geometric up to torsion \n 
URL:https://crc326gaus.de/event/anabelian-geometry-mochizukis-proof-of-the-hom-conjecture-dapres-faltings-4/
LOCATION:Frankfurt\, Robert-Mayer-Str. 6-8\, Raum 309
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250131T090000
DTEND;TZID=Europe/Berlin:20250131T110000
DTSTAMP:20260404T000040
CREATED:20241211T124459Z
LAST-MODIFIED:20241211T124459Z
UID:10159-1738314000-1738321200@crc326gaus.de
SUMMARY:Congruence Modules and the Wiles–Lenstra–Diamond Numerical Criterion in Higher Codimension
DESCRIPTION:Alireza Shavali (Universität Heidelberg): Hecke eigensystems and Galois representations for quaternion\nalgebras
URL:https://crc326gaus.de/event/congruence-modules-and-the-wiles-lenstra-diamond-numerical-criterion-in-higher-codimension-10/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250131T133000
DTEND;TZID=Europe/Berlin:20250131T143000
DTSTAMP:20260404T000040
CREATED:20250124T134541Z
LAST-MODIFIED:20250124T134541Z
UID:10496-1738330200-1738333800@crc326gaus.de
SUMMARY:Multivariable Lubin–Tate Fontaine equivalence
DESCRIPTION:Nataniel Marquis (IMJ Paris) \nIn 1991 J.-M. Fontaine proved an equivalence between continuons representations of $\mathcal{G}_{\mathbb{Q}_p}$ of finite type over $\mathbb{Z}_p$ and the category of étale $(\varphi\,\Gamma)$-modules over the ring of fonctions on a ghost circle. Recent developments in the mod $p$ Langlands program encouraged the search for similar equivalences for modules over multivariable rings. Work by Z\’abr\’adi and Carter-Kedlaya-Z\’abr\’adi fulfilled part of this expectation by establishing an equivalence between representations of finite products of $\mathcal{G}_{\mathbb{Q}_p}$ and multivariable cyclotomic $(\varphi\,\Gamma)$-modules. \nThe first goal of this talk is to sketch a proof of a Lubin-Tate variant for a $p$-adic local field $K$. Namely\, for a finite set $\Delta$\, we obtain an equivalence between continuous representations of $\prod_{\Delta} \mathcal{G}_K$ and a category called the étale $(\Phi_{\Delta\, q}\times \Gamma_{\Delta\,K\,\lt})$-modules over $\mathcal{O}_{\mathcal{E}_{K\,\Delta}}$ with finite projective dévissage. On the way to characterise the essential image of the functor $\mathbb{D}_{\Delta\,\lt}$\, we will explain which properties of finite type representations over $\mathbb{Z}_p$ are preserved by a Fontaine type functor. This will allow to give a theorem similar to the structure of finite type $\mathbb{Z}_p$-modules for the underlying $\mathcal{O}_{\mathcal{E}_{K\,\Delta}}$ appearing in the previous equivalence. Finally\, we will motivate how Lubin-Tate multivariable $(\varphi\,\Gamma)$-modules should be more useful than cyclotomic ones to obtain a Colmez functor for $\gl{n}{K}$.
URL:https://crc326gaus.de/event/multivariable-lubin-tate-fontaine-equivalence/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250131T140000
DTEND;TZID=Europe/Berlin:20250131T150000
DTSTAMP:20260404T000040
CREATED:20241202T131756Z
LAST-MODIFIED:20250124T133848Z
UID:10050-1738332000-1738335600@crc326gaus.de
SUMMARY:Tropical correspondence theorems for plane curve counts over arbitrary fields
DESCRIPTION:Jr.-Prof. Dr. Sabrina Pauli  (TU Darmstadt) \nWe study the problem of counting rational curves of fixed degree on a toric del Pezzo surface subject to point conditions. Over algebraically closed fields\, this count is invariant under the choice of point conditions. Over non-algebraically closed fields\, however\, the invariance fails. For real numbers\, Welschinger’s groundbreaking work introduced a signed count of real curves that restores invariance. \nBuilding on this\, Levine and Kass-Levine-Solomon-Wickelgren have developed curve counts over arbitrary fields that not only generalize Welschinger’s signed counts and classical counts over algebraically closed fields\, but also encode much richer arithmetic information. \nIn this talk I will survey these different approaches to counting rational curves with point conditions and discuss a recent joint result with A. Jaramillo Puentes\, H. Markwig\, and F. Röhrle. We establish a tropical correspondence theorem for curve counts over arbitrary fields\, identifying the count of algebraic curves with point conditions with a weighted count of their tropical counterparts with point conditions. The latter are combinatorial objects and there are several purely combinatorial methods to find all tropical curves with point conditions. \n 
URL:https://crc326gaus.de/event/tba-137/
LOCATION:Heidelberg\, MATHEMATIKON\, SR10\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Georg Bernhard Oberdieck":MAILTO:georgo@uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250131T153000
DTEND;TZID=Europe/Berlin:20250131T170000
DTSTAMP:20260404T000040
CREATED:20241016T113218Z
LAST-MODIFIED:20250123T135133Z
UID:9362-1738337400-1738342800@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Paul Siemon (TU Darmstadt): Stacks of parabolic vector bundles and Katz’s middle convolution algorithm\nI will discuss the geometry of the cuspidal locus inside stacks of parabolic vector bundles occurring in the tamely ramified geometric Langlands program. I will focus on the example of the stack of rank 2 bundles on the projective line with ramification at four points. Finally\, I will outline how the considerations in this example could extend to other situations using Katz’s middle convolution algorithm. \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-21/
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:20250204T140000
DTEND;TZID=Europe/Berlin:20250204T153000
DTSTAMP:20260404T000040
CREATED:20241108T103649Z
LAST-MODIFIED:20250131T072624Z
UID:9779-1738677600-1738683000@crc326gaus.de
SUMMARY:Vector bundles on curves
DESCRIPTION:Jon Miles: tCohomology of Bun_n \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/vector-bundles-on-curves-10/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250204T160000
DTEND;TZID=Europe/Berlin:20250204T170000
DTSTAMP:20260404T000040
CREATED:20241016T114840Z
LAST-MODIFIED:20250123T082958Z
UID:9395-1738684800-1738688400@crc326gaus.de
SUMMARY:Lifting of Maass forms to O(1\,8n+1) and applications to the sup-norm problem
DESCRIPTION:International Seminar on Automorphic Forms \nAmeya Pitale (University of Oklahoma): Lifting of Maass forms to O(1\,8n+1) and applications to the sup-norm problem \nIn a joint paper with Yingkun Li and Hiroaki Narita\, we had constructed liftings from Maass forms with respect to SL_2(Z) to Maass forms on O(1\,8n+1)\, which violated the Generalized Ramanujan conjecture. These were constructed via Borcherds theta lifts and we were able to give explicit formulas for their Fourier coefficients. In a recent joint work with Simon Marshall and Hiroaki Narita\, we first computed the Petersson inner product of the lift using the Rallis inner product formula. This essentially involves an archimedean integral computation. These are usually very complicated and intractable\, but in this case we are able to get an exact formula for the Petersson norm. Explicit formulas for the Fourier coefficients and Petersson norm are the essential ingredients of one of the approaches to obtain sup-norm bounds on these Maass forms. Investigations regarding sup-norm bounds for modular forms in the GL(2) case has been recently a very active area of research. Using the method mentioned above\, as well as a pre-trace formula approach\, we obtain the first sup-norm bounds results for these orthogonal groups. \nhttps://tu-darmstadt.zoom.us/j/68048280736 \nThe password is the first Fourier coefficient of the modular j-function (as digits) \n 
URL:https://crc326gaus.de/event/tba-122/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250205T120000
DTEND;TZID=Europe/Berlin:20250205T133000
DTSTAMP:20260404T000040
CREATED:20241209T084846Z
LAST-MODIFIED:20241211T140234Z
UID:10123-1738756800-1738762200@crc326gaus.de
SUMMARY:Hodge Theory
DESCRIPTION:Tom Bachmann (Universität Mainz): Mixed Hodge structures on singular varieties
URL:https://crc326gaus.de/event/hodge-theory-8/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250206T140000
DTEND;TZID=Europe/Berlin:20250206T163000
DTSTAMP:20260404T000040
CREATED:20250113T090222Z
LAST-MODIFIED:20250114T123259Z
UID:10326-1738850400-1738859400@crc326gaus.de
SUMMARY:Moduli of Quiver Representations and GIT Quotients
DESCRIPTION:14:00 – 15:00 Talk 6.1: Andreas Gross (Goethe Universität): Framed Representations \nCoffee break \n15:30 – 16:30 Talk 6.2: Pedro Souza (Goethe Universität): Symplectic Geometry and Double Quivers
URL:https://crc326gaus.de/event/moduli-of-quiver-representations-and-git-quotients-6/
LOCATION:Frankfurt\, Rober-Mayer-Str. 10\, Raum 711 klein
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250206T140000
DTEND;TZID=Europe/Berlin:20250206T173000
DTSTAMP:20260404T000040
CREATED:20241120T142351Z
LAST-MODIFIED:20241120T142351Z
UID:9923-1738850400-1738863000@crc326gaus.de
SUMMARY:Anabelian geometry - Mochizuki’s proof of the Hom-Conjecture [d’après Faltings]
DESCRIPTION:14:00 – 15:30 Talk 10: Tim Holzschuh (Universität Heidelberg): Proof of the Hom conjecture \n 
URL:https://crc326gaus.de/event/anabelian-geometry-mochizukis-proof-of-the-hom-conjecture-dapres-faltings-5/
LOCATION:Heidelberg
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20250206T141500
DTEND;TZID=Europe/Berlin:20250206T151500
DTSTAMP:20260404T000040
CREATED:20241126T121251Z
LAST-MODIFIED:20250128T081437Z
UID:10016-1738851300-1738854900@crc326gaus.de
SUMMARY:Pro-étale Q_p-cohomology of rigid analytic spaces
DESCRIPTION:Arthur-César Le Bras (Strasbourg) \nAbstract: The pro-étale Q_p-cohomology of rigid analytic spaces exhibits surprising features. I would like to explain a joint work with Johannes Anschütz and Lucas Mann which provides a conceptual explanation for these phenomena.
URL:https://crc326gaus.de/event/tba-135/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-Seminar
END:VEVENT
END:VCALENDAR