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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241114T140000
DTEND;TZID=Europe/Berlin:20241114T163000
DTSTAMP:20260423T150739
CREATED:20241105T092227Z
LAST-MODIFIED:20241105T092227Z
UID:9651-1731592800-1731601800@crc326gaus.de
SUMMARY:Moduli of Quiver Representations and GIT Quotients
DESCRIPTION:14:00 – 15:00 Talk 2.1: Nicole Müller (Goethe Universität): Affine GIT \nCoffee break \n15:30 – 16:30 Talk 2.2: Felix Göbler (Goethe Universität): Projective GIT
URL:https://crc326gaus.de/event/moduli-of-quiver-representations-and-git-quotients-2/
LOCATION:Frankfurt\, Robert-Mayer-Str. 6-8\, Raum 309
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241114T111500
DTEND;TZID=Europe/Berlin:20241114T124500
DTSTAMP:20260423T150739
CREATED:20241105T131134Z
LAST-MODIFIED:20241105T131134Z
UID:9678-1731582900-1731588300@crc326gaus.de
SUMMARY:The direct summand theorem
DESCRIPTION:Talk 5: Lars Wüste-Schmülling (Universität Heidelberg): Adic spaces I
URL:https://crc326gaus.de/event/the-direct-summand-theorem-2/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241113T120000
DTEND;TZID=Europe/Berlin:20241113T133000
DTSTAMP:20260423T150739
CREATED:20241107T105323Z
LAST-MODIFIED:20241111T090419Z
UID:9743-1731499200-1731504600@crc326gaus.de
SUMMARY:Hodge Theory
DESCRIPTION:Timon Tausendpfund (Universität Mainz): Kähler metrics
URL:https://crc326gaus.de/event/kahler-metrics/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241112T160000
DTEND;TZID=Europe/Berlin:20241112T170000
DTSTAMP:20260423T150739
CREATED:20241016T114448Z
LAST-MODIFIED:20241105T091814Z
UID:9381-1731427200-1731430800@crc326gaus.de
SUMMARY:On an extension of the Rohrlich-Jensen formula
DESCRIPTION:International Seminar on Automorphic Forms \nLeila Smajlovic (University of Sarajevo): On an extension of the Rohrlich-Jensen formula \nWe revisit the Rohrlich-Jensen formula and prove that\, in the case of any Fuchsian group of the first kind with one cusp it can be viewed as a regularized inner product of special values of two Poincaré series\, one of which is the Niebur-Poincaré series and the other is the resolvent kernel of the Laplacian. The regularized inner product can be seen as a type of Maass-Selberg relation. In this form\, we develop a Rohrlich-Jensen formula associated to any Fuchsian group Γ of the first kind with one cusp by employing a type of Kronecker limit formula associated to the resolvent kernel. We present two examples of our main result: First\, when Γ is the full modular group; and second when Γ is an Atkin-Lehner group Γ0(N)+. This work is joint with James Cogdell and Jay Jorgenson. \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-118/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241112T140000
DTEND;TZID=Europe/Berlin:20241112T153000
DTSTAMP:20260423T150739
CREATED:20241108T102637Z
LAST-MODIFIED:20241108T102637Z
UID:9760-1731420000-1731425400@crc326gaus.de
SUMMARY:Vector bundles on curves
DESCRIPTION:Mingkuan Zhang: Construction of vector bundles \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/vector-bundles-on-curves-3/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241108T153000
DTEND;TZID=Europe/Berlin:20241108T170000
DTSTAMP:20260423T150739
CREATED:20240909T081457Z
LAST-MODIFIED:20241021T103300Z
UID:9174-1731079800-1731085200@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Siyan Daniel Li-Huerta (MPIM Bonn): Close fields and the local Langlands correspondence \nThere is a heuristic that\, as ramification goes to infinity\, p-adic fields tend to function fields. For Galois representations\, this was made precise by Deligne\, and for representations of p-adic groups\, a similar result was shown by Kazhdan and Ganapathy. We present a proof that this is compatible with Fargues–Scholze’s local Langlands correspondence. The proof relies on carrying out Fargues–Scholze’s construction over the one-point compactification of the natural numbers. \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-12/
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:20241108T133000
DTEND;TZID=Europe/Berlin:20241108T143000
DTSTAMP:20260423T150739
CREATED:20241030T102418Z
LAST-MODIFIED:20241030T102805Z
UID:9587-1731072600-1731076200@crc326gaus.de
SUMMARY:Rigid cocycles and geodesics on Shimura curves
DESCRIPTION:Håvard Damm-Johnsen (University of Oxford /MPIM Bonn) \nDarmon and Vonk’s theory of rigid meromorphic cocycles gives a conjectural description of abelian extensions of real quadratic fields akin to the classical theory of complex multiplication. While their conjectures currently seem out of reach\, the work of Darmon-Pozzi-Vonk uses p-adic families of Hilbert modular forms to give unconditional results in this direction. I will explain how a reinterpretation in terms of the so-called Kudla programme suggests an approach to extending their results. This point of view also gives a new proof of a theorem of Rickards on intersections of geodesics on Shimura curves\, which is related to forthcoming work of Darmon-Vonk.
URL:https://crc326gaus.de/event/rigid-cocycles-and-geodesics-on-shimura-curves/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241108T111500
DTEND;TZID=Europe/Berlin:20241108T121500
DTSTAMP:20260423T150739
CREATED:20241025T135236Z
LAST-MODIFIED:20241025T135236Z
UID:9566-1731064500-1731068100@crc326gaus.de
SUMMARY:From SL(2) to SO(2): Rank-2 Vafa-Witten invariants
DESCRIPTION:Simon Schirren (Rom)
URL:https://crc326gaus.de/event/from-sl2-to-so2-rank-2-vafa-witten-invariants/
LOCATION:Heidelberg\, MATHEMATIKON\, SR 11\, 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:20241107T140000
DTEND;TZID=Europe/Berlin:20241107T163000
DTSTAMP:20260423T150739
CREATED:20241104T143957Z
LAST-MODIFIED:20241104T144333Z
UID:9630-1730988000-1730997000@crc326gaus.de
SUMMARY:Moduli of Quiver Representations and GIT Quotients
DESCRIPTION:14:00 – 15:00 Talk 1.1: Kevin Kühn (Goethe Universität): Introduction to Moduli \nCoffee break \n15:30 – 16:30 Talk 1.2: Yiu-Man Wong (Goethe Universität): Algebraic Group Actions and Quotients
URL:https://crc326gaus.de/event/moduli-of-quiver-representations-and-git-quotients/
LOCATION:Frankfurt\, Robert-Mayer-Str. 6-8\, Raum 309
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241107T111500
DTEND;TZID=Europe/Berlin:20241107T124500
DTSTAMP:20260423T150739
CREATED:20241105T130925Z
LAST-MODIFIED:20241105T130925Z
UID:9676-1730978100-1730983500@crc326gaus.de
SUMMARY:The direct summand theorem
DESCRIPTION:Talk 4: Anna Blanco Cabanillas(Universität Heidelberg): Perfectoid algebras
URL:https://crc326gaus.de/event/the-direct-summand-theorem/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241105T160000
DTEND;TZID=Europe/Berlin:20241105T170000
DTSTAMP:20260423T150739
CREATED:20241016T114401Z
LAST-MODIFIED:20241101T075704Z
UID:9380-1730822400-1730826000@crc326gaus.de
SUMMARY:Counting characters on algebraic tori according to their Langlands L-functions
DESCRIPTION:International Seminar on Automorphic Forms \nIan Petrow (UCL): Counting characters on algebraic tori according to their Langlands L-functions \nGiven a connected reductive group G over a global field\, Langlands introduced the automorphic L-function L(s\, π\, r) of a cuspidal automorphic representation π of G and a complex representation r of the L-group of G. While in general very little is known about Langlands L-functions\, if G = T is a torus the properties of these L-functions can be obtained from class field theory and one can attempt to study analytic problems pertaining to them. In this talk I will describe some analytic results on automorphic characters of tori with respect to the analytic conductor of L(s\, π\, r)\, attempting to focus on the interplay of analytic and algebraic ideas that arise in the proofs. \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-117/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241105T140000
DTEND;TZID=Europe/Berlin:20241105T153000
DTSTAMP:20260423T150739
CREATED:20241108T102414Z
LAST-MODIFIED:20241108T102518Z
UID:9759-1730815200-1730820600@crc326gaus.de
SUMMARY:Vector bundles on curves
DESCRIPTION:Aaron Rauchfuß : Algebraic curves \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/vector-bundles-on-curves-2/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241101T153000
DTEND;TZID=Europe/Berlin:20241101T170000
DTSTAMP:20260423T150739
CREATED:20240909T081328Z
LAST-MODIFIED:20241028T095457Z
UID:9172-1730475000-1730480400@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Pol van Hoften (VU Amsterdam): Igusa stacks and the cohomology of Shimura varieties \nAssociated to a modular form f is a two-dimensional Galois representation whose Frobenius eigenvalues can be expressed in terms of the Fourier coefficients of f\, using a formula known as the Eichler–Shimura congruence relation. This relation was proved by Eichler–Shimura and Deligne by analyzing the mod p (bad) reduction of the modular curve of level ?0(p). In this talk\, I will discuss joint work with Patrick Daniels\, Dongryul Kim and Mingjia Zhang\, where we give a new proof of this congruence relation that happens “entirely on the generic fibre”. More precisely\, we prove a compatibility result between the cohomology of Shimura varieties of Hodge type and the Fargues?Scholze semisimple local Langlands correspondence\, generalizing the Eichler–Shimura relation of Blasius–Rogawski. Our proof makes crucial use of the Igusa stacks that we construct\, generalizing earlier work of Zhang in the PEL case. \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-11/
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:20241031T141500
DTEND;TZID=Europe/Berlin:20241031T151500
DTSTAMP:20260423T150739
CREATED:20241002T100932Z
LAST-MODIFIED:20241022T104135Z
UID:9273-1730384100-1730387700@crc326gaus.de
SUMMARY:On the K-theory of curves over number fields.
DESCRIPTION:Rob de Jeu (Amsterdam) \nAbstract: Borel defined regulators for the odd degree higher K-groups of a number field k and proved a relation between these and the values of the zeta-function of k at 2\, 3\, 4\, …\, generalising the classical relation between its residue at s=1 and the regulator of the unit group of the ring of integers. Similar results were proved and/or conjectured by Bloch and Beilinson for the K-groups of varieties over number fields. After a review of the background\, we discuss some recent joint work with François Brunault\, Liu Hang\, and Fernando Rodriguez Villegas on K_2 of elliptic curves over certain cubic or quartic number fields\, and\, time permitting\, how one can try to describe the K_4 of curves over number fields.
URL:https://crc326gaus.de/event/tba-112/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241031T140000
DTEND;TZID=Europe/Berlin:20241031T173000
DTSTAMP:20260423T150739
CREATED:20241025T092600Z
LAST-MODIFIED:20241025T092600Z
UID:9536-1730383200-1730395800@crc326gaus.de
SUMMARY:Anabelian geometry - Mochizuki’s proof of the Hom-Conjecture [d’après Faltings]
DESCRIPTION:14:00 – 15:30 Talk 1: Jakob Stix (Goethe Universität): Introduction \nCoffee break \n16:00 – 17:30 Talk 2: Jonathan Miles (Goethe Universität): Galois cohomology and Hodge-Tate decomposition
URL:https://crc326gaus.de/event/anabelian-geometry-gaus-ag-2024-25/
LOCATION:Frankfurt\, Robert-Mayer-Str. 6-8\, Raum 309
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241031T111500
DTEND;TZID=Europe/Berlin:20241031T124500
DTSTAMP:20260423T150739
CREATED:20241105T140505Z
LAST-MODIFIED:20241105T140505Z
UID:9701-1730373300-1730378700@crc326gaus.de
SUMMARY:The direct summand theorem
DESCRIPTION:Talk 3: Nils Witt (Universität Heidelberg): Non-Archimedean Banach Algebras
URL:https://crc326gaus.de/event/the-direct-summand-theorem-10/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241029T161500
DTEND;TZID=Europe/Berlin:20241029T171500
DTSTAMP:20260423T150739
CREATED:20241025T131302Z
LAST-MODIFIED:20241025T134639Z
UID:9558-1730218500-1730222100@crc326gaus.de
SUMMARY:Moduli of twisted maps to smooth pairs
DESCRIPTION:Robert Crumplin (Heidelberg)
URL:https://crc326gaus.de/event/moduli-of-twisted-maps-to-smooth-pairs/
LOCATION:Heidelberg\, MATHEMATIKON\, SR 5\, 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:20241029T160000
DTEND;TZID=Europe/Berlin:20241029T170000
DTSTAMP:20260423T150739
CREATED:20241016T114245Z
LAST-MODIFIED:20241022T114634Z
UID:9379-1730217600-1730221200@crc326gaus.de
SUMMARY:Exact formulae for ranks of partitions
DESCRIPTION:International Seminar on Automorphic Forms \nQihang Sun (University of Lille): Exact formulae for ranks of partitions \nDyson’s ranks provided a new understanding of the integer partition function\, especially of its congruence properties. In 2009\, Bringmann used the circle method to prove an asymptotic formula for the Fourier coefficients of rank generating functions. In this talk\, we will prove that the asymptotic formula\, when summing up to infinity\, converges and becomes a Rademacher-type exact formula for the rank of partitions. \n\nhttps://tu-darmstadt.zoom.us/j/68048280736 \n 
URL:https://crc326gaus.de/event/tba-116/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241029T140000
DTEND;TZID=Europe/Berlin:20241029T153000
DTSTAMP:20260423T150739
CREATED:20241108T104140Z
LAST-MODIFIED:20241108T104140Z
UID:9783-1730210400-1730215800@crc326gaus.de
SUMMARY:Vector bundles on curves
DESCRIPTION:Julian Born: Vector bundles \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/vector-bundles-on-curves-12/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241025T133000
DTEND;TZID=Europe/Berlin:20241025T150000
DTSTAMP:20260423T150739
CREATED:20241018T115611Z
LAST-MODIFIED:20241018T115611Z
UID:9434-1729863000-1729868400@crc326gaus.de
SUMMARY:A moduli-theoretic approach to Sen theory
DESCRIPTION:Ben Heuer (Universität Frankfurt) \nClassical Sen theory describes C_p-semilinear representations of Galois groups of p-adic fields in terms of linear algebra data called Sen modules. I will first explain how this theory can be reinterpreted geometrically in terms of v-vector bundles\, creating a relation to the p-adic Simpson correspondence. I will then explain how one can use this to upgrade Sen’s Theorem to a comparison of moduli spaces of Galois representations and Sen modules: This explains known subtleties in classical Sen theory in a geometric fashion. Finally\, I will describe how we can use this to study moduli spaces of (phi\,Gamma)-modules. This is joint work-in-progress with Eugen Hellmann.
URL:https://crc326gaus.de/event/a-moduli-theoretic-approach-to-sen-theory/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241024T141500
DTEND;TZID=Europe/Berlin:20241024T151500
DTSTAMP:20260423T150739
CREATED:20241002T100703Z
LAST-MODIFIED:20241017T113423Z
UID:9271-1729779300-1729782900@crc326gaus.de
SUMMARY:On the algebraic K-theory of algebraic tori
DESCRIPTION:Florian Riedel (Kopenhagen) \nAbstract:\nI will describe work in progress joint with Bai\, Carmeli and Juran. A classical computation by Quillen expresses the algebraic K-theory spectrum of the ring of Laurent polynomials as the group ring of S^1 over the K-theory of the base field. We generalize this by showing that the algebraic K-theory spectrum of a not-necessarily split algebraic torus is given by the group ring of the delooping of the character lattice of the torus\, thus showing that a version of Cartier duality between algebraic and topological tori holds on the level of K-theory. We do this by constructing a motivic Fourier transform which is of independent interest and also recover an explicit formula of Merkujev-Panin for K_0 in a straightforward way.
URL:https://crc326gaus.de/event/tba-111/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241024T111500
DTEND;TZID=Europe/Berlin:20241024T124500
DTSTAMP:20260423T150739
CREATED:20241105T140328Z
LAST-MODIFIED:20241105T140328Z
UID:9698-1729768500-1729773900@crc326gaus.de
SUMMARY:The direct summand theorem
DESCRIPTION:Talk 2: Nils Tietke (Universität Heidelberg): Almost étale extensions and the almost purity theorem in characteristic
URL:https://crc326gaus.de/event/the-direct-summand-theorem-9/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241023T160000
DTEND;TZID=Europe/Berlin:20241023T170000
DTSTAMP:20260423T150739
CREATED:20241023T073421Z
LAST-MODIFIED:20241025T150227Z
UID:9455-1729699200-1729702800@crc326gaus.de
SUMMARY:Oberseminar Algebra und Geometrie
DESCRIPTION:Marius Leonhardt (Universität Frankfurt): Affine abelian non-abelian Chabauty \nAbstract: The central question of this talk is how to find all integral points on affine hyperbolic curves. For example\, which integers x\,y satisfy y^2 = x^3 + x^2 + x + 1?\nWe approach this problem by introducing Kim’s non-abelian Chabauty method\, which constructs p-adic analytic functions that have the integral points among their zeroes. In joint work with M. Lütdke and J.S. Müller\, we showed that the abelian version of this method succeeds if the curve satisfies a certain inequality involving its genus and the Mordell-Weil rank of its Jacobian.\nThis talk is an introduction to the Chabauty–Kim method. I will present the above result and report on work in progress with M. Lüdtke that turns it into an algorithm determining the integral points on the curve.
URL:https://crc326gaus.de/event/affine-abelian-non-abelian-chabauty-2/
LOCATION:Frankfurt\, RM-Str. 6-8\, R. 308
CATEGORIES:GAUS-Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241022T160000
DTEND;TZID=Europe/Berlin:20241022T170000
DTSTAMP:20260423T150739
CREATED:20241016T113803Z
LAST-MODIFIED:20241121T133311Z
UID:9376-1729612800-1729616400@crc326gaus.de
SUMMARY:On the cohomology of $SL(n\,\mathbb Z)$ beyond the "stable range"
DESCRIPTION:International Seminar on Automorphic Forms \nHarald Grobner (University of Vienna): On the cohomology of $SL(n\,\mathbb Z)$ beyond the “stable range” \nThe cohomology of the group $SL(n\,\mathbb{Z})\, n>1$\, plays a fundamental role in geometry\, topology and representation theory\, while yielding many number theoretical applications: For instance\, Borel used his description of $H^*(SL(n\,\mathbb Z))$ to compute the algebraic K-theory of the integers; whereas the (non-)vanishing of $H^*(SL(n\,\mathbb Z))$ tells a lot about the existence of certain automorphic forms. In this talk we will study the cohomology of $SL(n\,\mathbb Z)$\, „right outside“ of what one calls the stable range. More precisely\, we will show new non-vanishing results in degrees n−1 and n. As a byproduct\, we will also answer a question\, recently asked by F. Brown for n=6 and explain a phenomenon for n=8\, which has been considered by A. Ash. (This is joint work with N. Grbac.) \nhttps://tu-darmstadt.zoom.us/j/68048280736 \n 
URL:https://crc326gaus.de/event/tba-115/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241018T153000
DTEND;TZID=Europe/Berlin:20241018T170000
DTSTAMP:20260423T150739
CREATED:20240909T081154Z
LAST-MODIFIED:20240912T122506Z
UID:9170-1729265400-1729270800@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Joakim Faergeman (Yale University): Motivicity of rigid G-local systems on curves \nAbstract: A natural problem in the study of local systems on complex varieties is to characterize those that arise in a family of varieties. We refer to such local systems as motivic. While a classification of motivic local systems is evidently out of reach\, Simpson conjectured that for a reductive group G\, rigid G-local systems with suitable finiteness conditions at infinity are motivic. This was proven for curves when G=GL_n by Katz who classified such rigid local systems. In this talk\, we discuss our generalization of Katz’ theorem to a general reductive group. Our proof goes through the (tamely ramified) categorical geometric Langlands program in characteristic zero. \nZoom (635 7328 0984\, Kenncode: kleinste sechsstellige Primzahl
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-8/
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:20241017T111500
DTEND;TZID=Europe/Berlin:20241017T124500
DTSTAMP:20260423T150739
CREATED:20241105T140154Z
LAST-MODIFIED:20241105T140154Z
UID:9695-1729163700-1729169100@crc326gaus.de
SUMMARY:The direct summand theorem
DESCRIPTION:Talk 1: Immanuel Klevesath (Universität Heidelberg): Almost modules and almost commutative algebra
URL:https://crc326gaus.de/event/the-direct-summand-theorem-8/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241015T140000
DTEND;TZID=Europe/Berlin:20241015T153000
DTSTAMP:20260423T150739
CREATED:20241108T102215Z
LAST-MODIFIED:20241108T102215Z
UID:9755-1729000800-1729006200@crc326gaus.de
SUMMARY:Vector bundles on curves
DESCRIPTION:Timo Richarz (TU Darmstadt): Introduction and distribution of talks \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/vector-bundles-on-curves/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20241014
DTEND;VALUE=DATE:20241015
DTSTAMP:20260423T150739
CREATED:20240325T081345Z
LAST-MODIFIED:20240422T123520Z
UID:7932-1728864000-1728950399@crc326gaus.de
SUMMARY:GAUS Junior Symposium
DESCRIPTION:
URL:https://crc326gaus.de/event/gaus-junior-symposium/
LOCATION:Frankfurt\, Robert-Mayer-Str. 10\, Raum 711 groß
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241007T090000
DTEND;TZID=Europe/Berlin:20241011T140000
DTSTAMP:20260423T150739
CREATED:20231012T113145Z
LAST-MODIFIED:20240514T093528Z
UID:6662-1728291600-1728655200@crc326gaus.de
SUMMARY:Workshop: Methods in Mixed Characteristic Geometry
DESCRIPTION:https://sites.google.com/view/mmcg2024
URL:https://crc326gaus.de/event/methods-in-mixed-characteristic-geometry/
LOCATION:Mainz\, Schulz-Horner-Gebäude\, Lecture Hall C02
CATEGORIES:GAUS-Workshop
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20241007
DTEND;VALUE=DATE:20241012
DTSTAMP:20260423T150739
CREATED:20231128T143845Z
LAST-MODIFIED:20240619T125531Z
UID:7315-1728259200-1728691199@crc326gaus.de
SUMMARY:Workshop Tropical geometry: Moduli spaces and matroids
DESCRIPTION:
URL:https://crc326gaus.de/event/workshop-tropical-geometry-moduli-spaces-and-matroids-2/
LOCATION:Frankfurt\, Hilbertraum\, Rober-Mayer-Str. 6-8\, Raum 302
CATEGORIES:GAUS-Workshop
END:VEVENT
END:VCALENDAR