Algebra versus regularity for group actions on one-manifolds

Speaker(s)

Thomas Koberda

Affiliation

University of Virginia

Date

June 4, 2019, 4:15 p.m.

Room

room 3180

Seminar

Seminar Algebraic Topology

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JOINT WITH SIMONS SEMESTER

I will survey some results concerning the algebraic structure of finitely generated groups which admit faithful actions on compact one-manifolds. I will concentrate on continuous, C^1 , and C^2 actions, and on the various algebraic restrictions imposed by regularity requirements. Of particular interest will be nilpotent groups, right-angled Artin groups, and mapping class groups of surface. Time permitting, I will indicate some recent progress.

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