Groups and Dynamics Seminar

Date: April 10, 2024

Time: 3:00PM - 4:00PM

Location: BLOC 123

Speaker: Tatiana Nagnibeda, University of Geneva

Title: On maximal and weakly maximal subgroups in finitely generated groups

Abstract: Margulis and Soifer proved that in a finitely generated linear group all maximal subgroups are of finite index if and only if the group is solvable; otherwise there exist uncountably many maximal subgroups of infinite index, all of them isomorphic to a free group of infinite rank. In the talk we will discuss maximal and weakly maximal subgroups in some non-linear finitely generated groups, such as branch and weakly branch groups and Thompson’s group F.