Josh Frisch
Univerity of California San Diego
Randomized Stopping Times, Bounded Harmonic Functions on Groups, and Topological Realizations
September 17, 2025
ESB 2012
Bounded harmonic functions on groups (and their alter ego, the Poisson boundary)—bounded functions such that f(x) is the average of f(xa), where a is chosen from some probability measure—are objects of key importance in random walks, dynamics, and probability. Two core techniques for... Read more