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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241122T133000
DTEND;TZID=Europe/Berlin:20241122T143000
DTSTAMP:20260423T130319
CREATED:20241113T101011Z
LAST-MODIFIED:20241126T102149Z
UID:9829-1732282200-1732285800@crc326gaus.de
SUMMARY:Heights of modular polynomials
DESCRIPTION:Prof. Dr. Florian Breuer (University of Newcastle) \nFor every positive integer $N$\, the modular polynomial $\Phi_N(X\,Y)$ has integer coefficients and vanishes precisely at pairs of $j$-invariants of elliptic curves linked by a cyclic isogeny of order $N$. These polynomials have applications in cryptography and define integral (but singular) models for the modular curves $X_0(N)$. Their coefficients grow rapidly with $N$. In this talk\, I will explain recent joint work with Fabien Pazuki and Desir\’ee Gij\’on G\’omez obtaining explicit upper and lower bounds on the size of these coefficients. Our methods also lead to explicit bounds on the heights of Hecke images. If time allows\, I can also outline analogous results for Drinfeld modular polynomials.
URL:https://crc326gaus.de/event/heights-of-modular-polynomials/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Gebhard B%C3%B6ckle":MAILTO:gebhard.boeckle iwr.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241122T103000
DTEND;TZID=Europe/Berlin:20241122T113000
DTSTAMP:20260423T130319
CREATED:20241111T132603Z
LAST-MODIFIED:20241126T102342Z
UID:9817-1732271400-1732275000@crc326gaus.de
SUMMARY:Differential operators on automorphic forms\, special functions\, and arithmetic applications
DESCRIPTION:Tomoyoshi Ibukiyama\, Professor Emeritus Department of Mathematics Graduate School of Science\, Osaka University \nA theory of differential operators on automorphic forms\nwhich preserve automorphy after restrictions of\nthe domains have a long history and turned out\nto include a nice theory of special functions.\nWe will give rough outline on results\nsince 1990 (partly a joint work with D. Zagier) and\nexplain several arithmetic applications.
URL:https://crc326gaus.de/event/differential-operators-on-automorphic-forms-special-functions-and-arithmetic-applications/
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:20241122T090000
DTEND;TZID=Europe/Berlin:20241122T110000
DTSTAMP:20260423T130319
CREATED:20241211T123151Z
LAST-MODIFIED:20241211T123151Z
UID:10143-1732266000-1732273200@crc326gaus.de
SUMMARY:Congruence Modules and the Wiles–Lenstra–Diamond Numerical Criterion in Higher Codimension
DESCRIPTION:Alireza Shavali (Universität Heidelberg): Congruence modules and Wiles defect
URL:https://crc326gaus.de/event/congruence-modules-and-the-wiles-lenstra-diamond-numerical-criterion-in-higher-codimension-2/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241121T140000
DTEND;TZID=Europe/Berlin:20241121T173000
DTSTAMP:20260423T130319
CREATED:20241105T090649Z
LAST-MODIFIED:20241120T134713Z
UID:9642-1732197600-1732210200@crc326gaus.de
SUMMARY:Anabelian geometry - Mochizuki’s proof of the Hom-Conjecture [d’après Faltings]
DESCRIPTION:14:00 – 15:30 Talk 3: Leonie Scherer (Goethe Universität): Unipotent Tannakian categories
URL:https://crc326gaus.de/event/anabelian-geometry-mochizukis-proof-of-the-hom-conjecture-dapres-faltings/
LOCATION:Heidelberg
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241121T111500
DTEND;TZID=Europe/Berlin:20241121T124500
DTSTAMP:20260423T130319
CREATED:20241105T131509Z
LAST-MODIFIED:20241114T135904Z
UID:9680-1732187700-1732193100@crc326gaus.de
SUMMARY:The direct summand theorem
DESCRIPTION:Talk 6: Yanik Kleibrink (Universität Frankfurt): Adic spaces II
URL:https://crc326gaus.de/event/the-direct-summand-theorem-3/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241120T120000
DTEND;TZID=Europe/Berlin:20241120T133000
DTSTAMP:20260423T130319
CREATED:20241107T105518Z
LAST-MODIFIED:20241111T090646Z
UID:9745-1732104000-1732109400@crc326gaus.de
SUMMARY:Hodge Theory
DESCRIPTION:Andreas Gieringer (Universität Mainz): Harmonic forms I
URL:https://crc326gaus.de/event/harmonic-forms-i/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241119T160000
DTEND;TZID=Europe/Berlin:20241119T170000
DTSTAMP:20260423T130319
CREATED:20241016T114537Z
LAST-MODIFIED:20241108T080337Z
UID:9382-1732032000-1732035600@crc326gaus.de
SUMMARY:Cones of Noether-Lefschetz divisors and moduli of hyperkähler manifolds
DESCRIPTION:International Seminar on Automorphic Forms \nLaure Flapan (Michigan State University): Cones of Noether-Lefschetz divisors and moduli of hyperkähler manifolds \nWe describe how to compute cones of Noether-Lefshetz divisors on orthogonal modular varieties with a particular view towards moduli spaces of polarized K3 surfaces and hyperkähler manifolds. We then describe some geometric applications of these cone computations for these moduli spaces. This is joint work with I. Barros\, P. Beri\, and B. Williams. \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-119/
LOCATION:Zoom
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Claire Burrin":MAILTO:claire.burrin@math.uzh.ch
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241119T140000
DTEND;TZID=Europe/Berlin:20241119T153000
DTSTAMP:20260423T130319
CREATED:20241108T102833Z
LAST-MODIFIED:20241108T102833Z
UID:9764-1732024800-1732030200@crc326gaus.de
SUMMARY:Vector bundles on curves
DESCRIPTION:Michelle Klemt : Vector bundles on curves of low genus \nZoom (612 2072 7363\, Password: largest six digit prime number)
URL:https://crc326gaus.de/event/vector-bundles-on-curves-4/
LOCATION:Darmstadt\, Room 401 and Zoom\, Schlossgartenstraße 7\, Darmstadt\, 64289\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241115T153000
DTEND;TZID=Europe/Berlin:20241115T170000
DTSTAMP:20260423T130319
CREATED:20241016T112344Z
LAST-MODIFIED:20241104T123602Z
UID:9353-1731684600-1731690000@crc326gaus.de
SUMMARY:Seminar on Arithmetic Geometry
DESCRIPTION:Ludwig Modin (Leibniz Universität Hannover): Moduli spaces for Theta-strata and non-reductive quotients \nThe U-hat theorem of Bérczi\, Doran\, Hawes and Kirwan gives conditions for when a linear action of a complex graded unipotent group admits a geometric quotient\, it is one of the key results non-reductive geometric invariant theory is built on.\nWe give a stacky re-interpretation of this theorem in terms of Theta-strata\, as introduced by Halpern-Leistner\, of algebraic stacks. As a corollary we generalize the U-hat theorem to not necessarily linear actions of graded unipotent groups over a Noetherian base scheme. \nZoom (635 7328 0984)\, Kenncode: kleinste sechsstellige Primzahl
URL:https://crc326gaus.de/event/seminar-on-arithmetic-geometry-13/
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:20241115T133000
DTEND;TZID=Europe/Berlin:20241115T150000
DTSTAMP:20260423T130319
CREATED:20241106T133148Z
LAST-MODIFIED:20241126T102031Z
UID:9724-1731677400-1731682800@crc326gaus.de
SUMMARY:Antisymmetry in the theory of rigid meromorphic cocycles
DESCRIPTION:Sören Sprehe (Universität Bielefeld) \nAround six years ago Darmon and Vonk initiated the theory of p-adic singular moduli for real quadratic fields by defining “rigid meromorphic cocycles”. These are elements of the first cohomology group of Ihara’s group SL2(Z[1/p]) with values in the group of rigid meromorphic functions on Drinfeld’s upper half-plane. Using rigid meromorphic cocycles\, Darmon and Vonk assign to each pair of real quadratic irrationalities a p-adic number. The two irrationalities play a vastly different role in the construction of this assignment. However\, it is expected to behave like the difference of two classical singular moduli – in particular\, it should be anti-symmetric in the argument. We will use the recent work of Darmon\, Gehrmann and Lipnowski on rigid meromorphic cocycles for higher dimensional orthogonal groups to give a new\, symmetric construction of this function.
URL:https://crc326gaus.de/event/antisymmetry-in-the-theory-of-rigid-meromorphic-cocycles/
LOCATION:Heidelberg\, Mathematikon\, SR A and Livestream
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Gebhard B%C3%B6ckle":MAILTO:gebhard.boeckle iwr.uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241115T111500
DTEND;TZID=Europe/Berlin:20241115T121500
DTSTAMP:20260423T130319
CREATED:20241108T101412Z
LAST-MODIFIED:20241126T101943Z
UID:9752-1731669300-1731672900@crc326gaus.de
SUMMARY:Jacobi forms\, mock modular forms and qMZVs in enumerative geometry
DESCRIPTION:Jan-Willem van Ittersum (Cologne) \nAbstract: There are several instances where Gromov-Witten invariants can be expressed in terms of (quasi)Jacobi forms. In other examples in enumerative geometry\, one also encounters mock modular forms or even q-analogues of multiple zeta values. We explain the origin and properties of these series and provide examples of their occurrences as generating series of geometrical invariants.\n\nhttps://sites.google.com/view/heidelbergag/algebraic-geometry-seminar
URL:https://crc326gaus.de/event/jacobi-forms-mock-modular-forms-and-qmzvs-in-enumerative-geometry/
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:20241115T090000
DTEND;TZID=Europe/Berlin:20241115T110000
DTSTAMP:20260423T130319
CREATED:20241211T123001Z
LAST-MODIFIED:20241211T123001Z
UID:10140-1731661200-1731668400@crc326gaus.de
SUMMARY:Congruence Modules and the Wiles–Lenstra–Diamond Numerical Criterion in Higher Codimension
DESCRIPTION:Andrea Conti (Universität Heidelberg): Overview
URL:https://crc326gaus.de/event/congruence-modules-and-the-wiles-lenstra-diamond-numerical-criterion-in-higher-codimension/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241114T140000
DTEND;TZID=Europe/Berlin:20241114T163000
DTSTAMP:20260423T130319
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:20260423T130319
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:20260423T130319
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:20260423T130319
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:20260423T130319
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:20260423T130319
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:20260423T130319
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:20260423T130319
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:20260423T130319
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:20260423T130319
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:20260423T130319
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:20260423T130319
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:20260423T130319
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
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241031T141500
DTEND;TZID=Europe/Berlin:20241031T151500
DTSTAMP:20260423T130319
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
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241031T140000
DTEND;TZID=Europe/Berlin:20241031T173000
DTSTAMP:20260423T130319
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
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241031T111500
DTEND;TZID=Europe/Berlin:20241031T124500
DTSTAMP:20260423T130319
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
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241029T161500
DTEND;TZID=Europe/Berlin:20241029T171500
DTSTAMP:20260423T130319
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
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20241029T160000
DTEND;TZID=Europe/Berlin:20241029T170000
DTSTAMP:20260423T130319
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
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END:VCALENDAR