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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)

Plectic Jacobians

Heidelberg, Mathematikon, SR A and Livestream

Dr. Lennart Gehrmann (Universität Duisburg-Essen)