Dehn-Nielsen-Baer Theorem

Geometry Topology Student Seminar
Wednesday, November 19, 2014 - 02:01
1 hour (actually 50 minutes)
Skiles 006
Georgia Tech
The Dehn Nielsen Baer Theorem states that the extended mapping class group is isomorphic to the outer automorphisms of π1(Sg). The theorem highlights the connection between the topological invariant of distinct symmetries of a space and its fundamental group. This talk will incorporate ideas from algebra, topology, and hyperbolic geometry!