230314 Tobias Lenz

March 14, 2023

Title: Algebraic K-theory and symmetries (MI talk)

Speaker: Tobias Lenz

Algebraic K-theory is an important (and notoriously hard to compute) invariant of rings containing at the same time number theoretic, geometric, and representation theoretic information. In this talk, I will give a leisurely introduction to the modern approach to K-theory via higher group completion, and then explain how one can refine this to capture additional "symmetries" of the input ring, leading to equivariant algebraic K-theory.

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