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SUMMARY:Boundaries of hyperbolic groups - Ben Barrett (Cambridge)
DTSTART:20150501T140000Z
DTEND:20150501T150000Z
UID:TALK59395@talks.cam.ac.uk
CONTACT:Joe Waldron
DESCRIPTION:Geometric group theory is the study of the connections between
  algebraic properties of finitely generated groups and geometric and topol
 ogical properties of the spaces on which such groups act. I will give an i
 ntroduction to this subject before moving on to some applications. Time pe
 rmitting\, I will try to give an overview of some results linking connecti
 vity properties of the Gromov boundary of a hyperbolic group G with the ex
 istence of graphs on which G can act with finite or virtually cyclic edge 
 stabilisers. The existence of such an action is equivalent to the existenc
 e of a splitting of G as a special type of graph of groups.
LOCATION:MR13
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