Department of Mathematics,
University of California San Diego
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Math 243, functional analysis seminar
Michael Davis
University of Iowa
Rigidity for von Neumann Algebras of Graph Product Groups
Abstract:
I will discuss my ongoing joint work with Ionut Chifan and Daniel Drimbe on various rigidity aspects of von Neumann algebras arising from graph product groups whose underlying graph is a certain cycle of cliques and whose vertex groups are wreath-like product property (T) groups. In particular, I will describe all symmetries of these von Neumann algebras by establishing formulas in the spirit of Genevois and Martin’s results on automorphisms of graph product groups. In doing so, I will highlight the methods used from Popa’s deformation/rigidity theory as well as new techniques pertaining to graph product algebras.
Host: David Jekel and Priyanga Ganesan
November 15, 2022
11:00 AM
APM 6402 and Zoom
(email djekel@ucsd.edu for Zoom info)
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