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Topology/Geometry Seminar

Nielsen realization problem for 3-manifolds

Lei Chen (University of Maryland)

Location:  Hill 705
Date & time: Tuesday, 05 April 2022 at 3:50PM - 4:50PM

In this talk, I will describe a joint work with Bena Tshishiku on Nielsen Realization problem for 3-manifolds, in particular, about the twist subgroup. The twist subgroup is a normal finite abelian subgroup of the mapping class group of 3-manifold, generated by the sphere twist. The proof mainly uses the geometric sphere theorem/torus theorem and geometrization.

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