KU-SDU operator algebra seminar (online)
Title: Symmetries of Operator Algebras
Speaker: Samuel Evington (Münster)
Abstract: I will begin by discussing Cones' classification of automorphisms of the hyperfinite II_1 factor R and its subsequent generalisations (e.g. group actions and actions of unitary fusion categories). I will then switch to the C*-setting and explain the new obstructions that occur (spoiler: algebraic K_1) and the result of adapting the von Neumann constructions to the C*-setting (spoiler: different descriptions of R lead to different classifiable C*-algebras). The talk is based on joint work with Sergio Giron Pacheco.
Zoom:
https://syddanskuni.zoom.us/j/67427295726?pwd=TlQ4NEY2a0RMcEpld2hDaUt3YmhLdz09
Password: OANCG