Realizations of equivalence relations and subshifts
Speaker:
Forte Shinko, The Fields Institute and University of California
Date and Time:
Friday, January 27, 2023 - 1:30pm to 2:30pm
Location:
Fields Institute, Room 210 or online at https://zoom.us/j/92415047239
Abstract:
Every continuous action of a countable group on a Polish space induces a Borel equivalence relation. We are interested in the problem of realizing (i.e. finding a Borel isomorphic copy of) these equivalence relations as continuous actions on compact spaces. We provide a number of positive results on this problem, and we investigate the connection to subshifts. Joint with Joshua Frisch, Alexander Kechris and Zoltán Vidnyánszky.