Fabio Bernasconi
ZoomFabio Bernasconi (University of Utah)
Log liftability for del Pezzo surfaces and applications to singularities in positive characteristic
Topic discussion
ZoomTopic discussion for the GAUS-AG of the upcoming semester WS 2021/22
Xuesen Na
ZoomXuesen Na (University of Maryland)
Limiting configuration of SU(1,2) Higgs bundles
Conference on vertex algebras and related topics
Darmstadt and ZoomIn this conference we want to bring together people from different directions in the theory of vertex algebras and from related areas to discuss recent advances.
Workshop Series on Non-Archimedean and Tropical Geometry
ZoomThe Workshop Non-Archimedean and Tropical Geometry, originally planned for Fall 2020, has been converted to a series of smaller virtual (and later hybrid) afternoon workshops to take place biweekly in the Fall of 2021. The first session will take place on Friday, October 1st, 2021. Later sessions, starting on Nov. 12, will take place in a … Continue reading Workshop Series on Non-Archimedean and Tropical Geometry
Workshop Non-Archimedean and Tropical Geometry
ZoomThe Workshop Non-Archimedean and Tropical Geometry, originally planned for Fall 2020, has been converted to a series of smaller virtual (and later hybrid) afternoon workshops to take place biweekly in the Fall of 2021. The first session will take place on Friday, October 1st, 2021. Later sessions, starting on Nov. 12, will take place in a … Continue reading Workshop Non-Archimedean and Tropical Geometry
Remi Reboulet
ZoomRemi Reboulet (Université Grenoble Alpes)
tba
Grigory Andreychev (Universität Bonn): Descent on Analytic Adic Spaces via Condensed Mathematics
Heidelberg, Mathematikon, SR A and LivestreamIn this talk, I am going to explain the main results of my recent preprint (arXiv:2105.12591). The primary goal will be to prove that for every affinoid analytic adic space $X$, pseudocoherent complexes, perfect complexes, and finite projective modules over $\mathcal{O}_X(X)$ form a stack with respect to the analytic topology on $X$. The proof relies on the new approach to analytic geometry developed by Clausen and Scholze by means of condensed mathematics; therefore, I will also explain how to apply their formalism of condensed analytic rings to the study of adic geometry.
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 a Pontryagin duality. For certain weights, we give an ad hoc construction which satisfies such a duality unconditionally. We then explain how this leads to … 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 online (more details will follow later). Attached to this email you can find the program. If you are interested in giving a talk, please send … Continue reading Plectic Stark-Heegner points (after Fornea-Gehrmann and Fornea-Guitart-Masdeu)