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SUMMARY:JSJ decompositions - Ben Barrett (University of Cambridge)
DTSTART:20171117T134500Z
DTEND:20171117T150000Z
UID:TALK95575@talks.cam.ac.uk
CONTACT:Maurice Chiodo
DESCRIPTION:In group theory\, JSJ decomposition is a way of cutting a grou
 p up into simpler pieces in a canonical way\, inspired by the 3-manifold d
 ecomposition of the same name. In this seminar I'll talk a bit about how i
 t's defined and how it behaves\, in particular in the case of a hyperbolic
  group. In the hyperbolic case\, a theorem of Brian Bowditch describes how
  a particularly useful JSJ decomposition of a group can be read off the st
 ructure of local cut points in the boundary of the group. I will describe 
 how this is done.
LOCATION:CMS\, MR13
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