Hodge theory of matroids (Session 1)
ZoomThis semester’s topic in our joint research seminar is Hodge theory of matroids. The meetings take place on Zoom on a bi-weekly basis during lecture time, Thursdays 15-18.
Talk 1: Overview of the topic of the seminar. (Martin Ulirsch)
Talk 2: Matroid basics I – cryptomorphisms and examples (Ingmar Metzler)
Thomas Geisser (Rikkyo University Tokyo): Duality for motivic cohomology over local fields and applications to class field theory
Heidelberg, Mathematikon, SR A and LivestreamWe give an outline of a (conjectural) construction of cohomology groups for smooth and proper varieties over local fields with values in the derived category of locally compact groups satisfying … Continue reading Thomas Geisser (Rikkyo University Tokyo): Duality for motivic cohomology over local fields and applications to class field theory
Plectic Stark-Heegner points (after Fornea-Gehrmann and Fornea-Guitart-Masdeu)
Heidelberg, Mathematikon, SR A and LivestreamWe will meet on Tuesdays at 9:15 in SR 8 in the Mathematikon, Heidelberg. The seminar is planned to be in person, but it will also be possible to participate … Continue reading Plectic Stark-Heegner points (after Fornea-Gehrmann and Fornea-Guitart-Masdeu)
Definition of the tame site
Heidelberg, MATHEMATIKON, SR 4 INF 205, Heidelberg, GermanyTim Holzschuh
Georg Tamme (Universität Mainz): Purity in chromatically localized algebraic K-theory
Heidelberg, Mathematikon, SR A and LivestreamIn classical algebra, the prime fields are Q and for every prime number p the finite field F_p. In higher algebra, one has for every prime number p an additional … Continue reading Georg Tamme (Universität Mainz): Purity in chromatically localized algebraic K-theory
The tame fundamental group (Part 1)
Heidelberg, MATHEMATIKON, SR 4 INF 205, Heidelberg, GermanyAlexander Schmidt
Yujie Xu
ZoomYujie Xu (Harvard University)
tba
Hodge theory of matroids (Session 2)
ZoomThe meetings take place on Zoom on a bi-weekly basis during lecture time, Thursdays 15-18.
Talk 3: Matroid basics II – exercise session (no speaker)
Talk 4: Matroid basics III – the lattice of flats (Arne Kuhrs)
Dr. Marcin Lara: Specialization for the pro-étale fundamental group and fundamental groups in rigid geometry
Heidelberg, Mathematikon, SR A and LivestreamThe specialization morphism for the étale fundamental groups of Grothendieck cannot be generalized word-for-word to the more general pro-\'etale fundamental group of Bhatt and Scholze. It turns out, that one … Continue reading Dr. Marcin Lara: Specialization for the pro-étale fundamental group and fundamental groups in rigid geometry
Kolloquium Geometrie und Arithmetik (Part 3)
Mainz, Hilbertraum (05-432) and ZoomThomas Nikolaus (Münster
Segal's Burnside ring conjecture and a generalization for norms
The tame fundamental group (Part 2)
Alexander Schmidt
Hodge theory of matroids (Session 3)
ZoomThe meetings take place on Zoom on a bi-weekly basis during lecture time, Thursdays 15-18.
Talk 5: Operations on matroids (Pedro Souza)
Talk 6: The characteristic polynomial (Lucie Devey)