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SUMMARY:Polynomial invariants of graph maps and applications to Out(Fn) an
 d Mod(Sgn) - Eriko Hironaka (American Mathematical Society\; Florida State
  University)
DTSTART:20170620T103000Z
DTEND:20170620T113000Z
UID:TALK72996@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Mapping classes on surfaces and outer automorphisms of the fre
 e group define dynamical systems that can often be described in terms of g
 raph maps. &nbsp\; In this&nbsp\; talk we present algebraic and geometric 
 invariants of graph maps and relate these to&nbsp\; the corresponding inva
 riants in the geometric setting\,&nbsp\; In particular\, we present a unif
 ied way&nbsp\;to view&nbsp\; Alexander polynomials&nbsp\;and the lesser kn
 own&nbsp\;Teichmueller polynomials. &nbsp\;This talk is based on joint wor
 k with Kasra Rafi and Yael Algom-Kfir.
LOCATION:Seminar Room 1\, Newton Institute
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