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Some aspects of the large scale geometry of Out(F)

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Patrick Reynolds, University of Utah

What
  • Topology Seminar
When Fri, Feb 01, 2013
from 11:00 AM to 11:50 AM
Where Ritter Hall 316
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Abstract: We will explain some large-scale features of outer automorphism groups of free groups, all denoted Out(F), via actions of Out(F) on certain (Gromov) hyperbolic spaces. There are several such spaces: each one we will discuss is a "curve complex" for Out(F), and each is useful for understanding certain aspects of the geometry of Out(F).


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