[Binghamton Geometry/Topology Seminar] GEOMETRY/TOPOLOGY SEMINAR this Thursday

[Tam Nguyen Phan]

  BINGHAMTON GEOMETRY/TOPOLOGY SEMINAR


   Date: Thursday, March 19th, 2015

   Time:  2.50 pm

   Place: Whitney Hall, Room 100E,  followed by coffee/tea in the
      Hilton Reading Room. Note the new location of the math department (
http://www2.math.binghamton.edu/p/directions).


   Speaker: Matt Zaremsky (Binghamton University)
   Title: The -invariants of Thompson's group , via Morse theory

   Abstract: In a paper published in 2010, Bieri, Geoghegan and Kochloukova
computed the -invariants (also called Bieri-Neumann-Strebel-Renz
invariants) of Thompson's group . In recent joint work with Stefan Witzel,
we recomputed these using the action of  on a certain CAT(0) cube complex
called the Stein-Farley complex. The main tool is a version of discrete
Morse theory. I will explain what all of these words mean over the course
of the talk, and it should be accessible to non-experts.


NOTE:  The seminar has a webpage where the semester's program is listed:

http://www2.math.binghamton.edu/p/seminars/topsem

It can also be linked from the Department's Home Page.
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