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Plectic Stark-Heegner points (after Fornea-Gehrmann and Fornea-Guitart-Masdeu)

Heidelberg, Mathematikon, SR A and Livestream

We 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)

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Georg Tamme (Universität Mainz): Purity in chromatically localized algebraic K-theory

Heidelberg, Mathematikon, SR A and Livestream

In 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 sequence of prime fields K(p,n), n a natural number, which in some sense interpolates between Q and F_p. Associated with these prime fields one has … Continue reading Georg Tamme (Universität Mainz): Purity in chromatically localized algebraic K-theory

Hodge theory of matroids (Session 2)

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The 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 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)