香蕉视频

Title:聽Distinguishing finitely presented groups by their finite quotients.

Abstract:聽If G is a finitely generated group, let C(G) denote the set of finite quotients of G. 聽This talk will survey work on the question of to what extent C(G) determines G up to isomorphism, culminating in a discussion of examples of Fuchsian and Kleinian groups that are determined by C(G) (amongst finitely generated residually finite groups).