Topology and dynamics of the outer automorphism group of a free group

Alexandra Pettet (U Oxford)

Wednesday 9th February, 2011 16:00-17:00 204


The outer autormorphism group Out(F) of a finite rank free group shares many properties with lattices in Lie groups and with the mapping class group Mod(S) of a surface, although the techniques for studying Out(F) are often quite different from the latter two. Motivated by analogy, I will describe some recent results about Out(F), previously well-known for the mapping class group, while highlighting some of the features which distinguish it from Mod(S).

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