Operator Theory Seminar

Michael Davis
Rigidity for von Neumann Algebras of Graph Product Groups


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.

Event Date: 
February 14, 2023 - 1:30pm to 2:30pm
VAN 309 or Online (See URL)
Calendar Category: 
Seminar Category: 
Operator Theory