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Department of Mathematics,
University of California San Diego

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Seminar in Algebra-Math 211A

Pablo Ocal

UCLA

A twisted approach to the Balmer spectrum of the stable module category of a Hopf algebra

Abstract:

 The Balmer spectrum of a tensor triangulated category is a topological tool analogous to the usual spectrum of a commutative ring. It provides a universal theory of support, giving a categorical framework to (among others) the support varieties that have been used to great effect in modular representation theory. In this talk I will present an approach to the Balmer spectrum of the stable module category of a Hopf algebra using twisted tensor products and emphasizing examples. This will include an unpretentious introduction to twisted tensor products, the Balmer spectrum, and the relevance of both in representation theory.

February 6, 2023

3:00 PM

APM 7321

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