|Date: Friday, December 03, 2021
Location: 3866 East Hall (3:30 PM to 4:30 PM)
Title: Convex cocompact subgroups of the Goeritz group
Abstract: This talk is about hyperbolicity of surface group extensions and a question of Farb-Mosher about whether purely pseudo-Anosov subgroups of mapping class groups are convex cocompact. I will explain this problem and give an answer for subgroups of the genus-2 Goeritz group, which is the group of mapping classes of a genus-2 surface that extend to the genus-2 Heegaard splitting of the 3-sphere.
Speaker: Bena Tshishiku
Event Organizer: Alex Wright