Koji Fujiwara: "The rate of growth of hyperbolic groups"

mardi 27 avr. 2021, 10:15 → 11:15 Europe/Paris

Abstract: I discuss the set of rates of growth of a hyperbolic group with respect to all its finite generating sets. It turns out that the set is well-ordered, and that every real number can be the rate of growth of at most finitely many generating sets up to automorphism of the group. This is a joint work with Zela. If time permits, I'd like to discuss other families of groups.