Seminars & Colloquia Calendar
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.