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DTSTART;TZID=Europe/Berlin:20260618T090000
DTEND;TZID=Europe/Berlin:20260618T110000
DTSTAMP:20260618T110852
CREATED:20260407T112157Z
LAST-MODIFIED:20260428T101935Z
UID:13010-1781773200-1781780400@crc326gaus.de
SUMMARY:Poincaré-Dualität in Charakteristik p
DESCRIPTION:Vortrag 8: Gerstenauflösung I – Immanuel Klevesath
URL:https://crc326gaus.de/event/poincare-dualitat-in-charakteristik-p-8/
LOCATION:Heidelberg\, Mathematikon\, SR 8\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260618T111500
DTEND;TZID=Europe/Berlin:20260618T124500
DTSTAMP:20260618T110852
CREATED:20260324T095438Z
LAST-MODIFIED:20260428T094146Z
UID:12902-1781781300-1781786700@crc326gaus.de
SUMMARY:The K-Theory of Z/p^n
DESCRIPTION:Talk 8: Relative-to-absolute descent II – Chenyi Yang (Universität Heidelberg)
URL:https://crc326gaus.de/event/gaus-ag-the-k-theory-of-z-pn/
LOCATION:Heidelberg\, Mathematikon\, SR 8 and Zoom\, INF 205\, Heidelberg\, Germany
CATEGORIES:GAUS-AG
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260618T140000
DTEND;TZID=Europe/Berlin:20260618T160000
DTSTAMP:20260618T110852
CREATED:20260608T111855Z
LAST-MODIFIED:20260608T111855Z
UID:13523-1781791200-1781798400@crc326gaus.de
SUMMARY:Cohomology of symmetric stacks
DESCRIPTION:I will talk about a joint project with Chenjing Bu\, Ben Davison\, Andrés Ibáñez-Núñez\, and Tasuki Kinko. For a large class of stacks\, we decompose their cohomology in terms of what we call BPS cohomology\, which is a structure originating in enumerative geometry of Calabi-Yau 3-folds\, but which is of interest beyond this class of examples. Such stacks include smooth stacks (such as the moduli of G-bundles on a curve)\, symplectic stacks (such as the moduli of G-Higgs bundle on a curve)\, or some (-1)-shifted symplectic stacks (such as the moduli of semistable sheaves on a Calabi-Yau threefold).
URL:https://crc326gaus.de/event/cohomology-of-symmetric-stacks/
LOCATION:Heidelberg\, MATHEMATIKON\, SR 007\, Im Neuenheimer Feld 205\, Heidelberg\, 69120\, Germany
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Georg Bernhard Oberdieck":MAILTO:georgo@uni-heidelberg.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260618T160000
DTEND;TZID=Europe/Berlin:20260618T180000
DTSTAMP:20260618T110852
CREATED:20260612T095116Z
LAST-MODIFIED:20260612T100534Z
UID:13546-1781798400-1781805600@crc326gaus.de
SUMMARY:Oberseminar Algebra und Geometrie
DESCRIPTION:Dr. Giusi Capobianco: Algebraic and tropical Prym-Torelli map \nAbstract: Given an étale double cover of smooth curves one can associate a principally polarized abelian variety called the Prym variety. The map from the moduli space of double covers Rg to the moduli space of pp abelian varieties Ag-1 is called Prym-Torelli\, in analogy with the Jacobian case. This map does not extend to a morphism from the boundary of Rg to any of the standard toroidal compactifications of Ag-1. In this talk I will present their tropical counterpart and prove that\, with a slight modification of the definition\, the tropical Prym-Torelli map is continuous.\nThis result is part of my PhD thesis and will appear on the arXiv soon.
URL:https://crc326gaus.de/event/oberseminar-algebra-und-geometrie-9/
LOCATION:Frankfurt\, RM-Str. 6-8\, R. 308
CATEGORIES:GAUS-Seminar
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260618T163000
DTEND;TZID=Europe/Berlin:20260618T173000
DTSTAMP:20260618T110852
CREATED:20260529T092153Z
LAST-MODIFIED:20260612T101403Z
UID:13468-1781800200-1781803800@crc326gaus.de
SUMMARY:AGTZ Kolloquium
DESCRIPTION:Karin Schaller (JGU Mainz) \nTitel: Nobodies are perfect\, semigroups are not. \nNewton-Okounkov bodies provide a powerful link between algebraic geometry and convex geometry\, extending the correspondence between toric varieties and lattice polytopes. They are constructed from valuation semigroups associated with divisors\, making the finite generation of these semigroups a natural and important question. After an introduction to toric geometry\, we study valuation semigroups on toric surfaces arising from non-toric flags. Based on joint work with Altmann\, Haase\, Küronya\, and Walter\, the talk presents a combinatorial criterion for the finite generation of these semigroups.
URL:https://crc326gaus.de/event/agtz-kolloquium-6/
LOCATION:Mainz\, Hilbertraum (05-432)
CATEGORIES:GAUS-Seminar
ORGANIZER;CN="Georg Tamme":MAILTO:georg.tamme@uni-mainz.de
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