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Speaker:

Søren Galatius
Affiliation:

University of Copenhagen
Date:

Thu, 15/08/2024 - 12:00 - 13:30
Location:

MPIM Lecture Hall
Parent event:

Physical Math Seminar I will discuss two spectral sequences of Hopf algebras, a morphism between them, and some applications. One spectral sequence is related to the algebraic K-theory of the integers and was introduced, without Hopf algebra structure, by Quillen in his proof that algebraic K-groups are finitely generated. The other spectral sequence is related to the Grothendieck-Teichmüller group and to Kontsevich's graph complexes. This is joint work with Francis Brown, Melody Chan, and Sam Payne, cf. arXiv:2405.11528.

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