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Dr. Marcin Lara: Specialization for the pro-étale fundamental group and fundamental groups in rigid geometry

Heidelberg, Mathematikon, SR A and Livestream

The 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 can deal with this problem by applying a rigid-geometric point of view: for a formal scheme X of finite type over a complete rank one valuation ring, … Continue reading Dr. Marcin Lara: Specialization for the pro-étale fundamental group and fundamental groups in rigid geometry →

Hodge theory of matroids (Session 3)

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The 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)

Plectic Jacobians

Heidelberg, Mathematikon, SR A and Livestream

Dr. Lennart Gehrmann (Universität Duisburg-Essen)

Hodge theory of matroids (Session 4)

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This 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 7: A crash course on toric varieties (Felix Goebler)
Talk 8: Minkowski weights and the Chow ring of a toric variety (Luca Battistella)

Non-Archimedean and tropical geometry

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14:00-15:00 Claudia Fevola (Max Planck Institute Leipzig)
Kp Solitons from Tropical Limits

15:15-16:15 David Holmes (Leiden University)
Piecewise polynomials and intersection theory

16:30-17:30 Dimitri Wyss (École Polytechnique Fédérale de Lausanne)
DT-invariants from non-archimedean integrals