Friday, October 18, 2024, 11:00am - 12:00pm
I will discuss hyperlinear approximations of amenable and ideas on how to show that such approximation is essentially produced from a sofic approximation. The proof is probabilistic, using the concentration of measure in high dimensional spheres to control the deviation of an operator's matrix coefficients from its trace. As a corollary, I will connect stability of sofic approximations with stability of hyperlinear approximations.
Location: PMA 9.166