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SUMMARY:Free-by-cyclic groups and trees - Christopher Leininger (Universit
 y of Illinois at Chicago)
DTSTART:20170623T103000Z
DTEND:20170623T113000Z
UID:TALK73045@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Given a hyperbolic free-by-cyclic group G\,&nbsp\;I will expla
 in how to assign an action of G on a topological R-tree T_U&nbsp\;for cert
 ain components U of the BNS invariant. &nbsp\; For every element x in U\, 
 there is a metric on T_U so that G acts by homotheties and the kernel of x
  acts by isometries. &nbsp\;This is part of ongoing joint work with Spence
 r Dowdall and &nbsp\;Ilya Kapovich.
LOCATION:Seminar Room 1\, Newton Institute
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