Special Seminar: Ayala Byron (HUJI) "Homogeneity of torsion-free hyperbolic groups"


Abstract:
A (countable) group G is homogeneous if whenever g,h are tupples of the same type in G, there is an automorphism of G sending g to h.
We give a characterization of freely-indecomposable torsion-free hyperbolic groups which are homogeneous, in terms of a particular decomposition as a graph of groups - their JSJ decomposition. This is joint work with Chloe Perin.

Date: 

Thu, 29/06/2017 - 14:00 to 15:00

Location: 

Ross 70