Linear Analysis Seminar

Date: February 22, 2019

Time: 4:00PM - 5:00PM

Location: BLOC 220

Speaker: Corey Jones, Ohio State University

Title: Generalized crossed products and discrete subfactors

Abstract: We will describe a generalization of the crossed product construction for von Neumann algebras, where a group action on the algebra is replaced by a rigid C*-tensor category action on the algebra, together with a W*-algebra object internal to this category. Every spherical discrete extension of a II1 factor can be uniquely realized as such a crossed product. We will discuss some examples and applications. Based on joint work with David Penneys.