Seminar Event Detail


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
Institution:  Brown

Event Organizer:   Alex Wright   


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