[Binghamton Geometry/Topology Seminar] geometry-topology seminar

[Ross Geoghegan]

                   BINGHAMTON GEOMETRY/TOPOLOGY SEMINAR


   Date: Thursday, February 24  

   Time:  2.50 pm

   Place: Library North 2205 followed by coffee/tea in the Anderson
          Reading Room.

   Speaker: Brendan Owens (Cornell)

   Title: Unknotting numbers and Heegaard Floer theory

   Abstract: Ozsvath and Szabo recently described an obstruction to a knot
   having unknotting number one, using the Heegaard Floer invariants of
   the branched double cover of the knot. I will describe this obstruction
   and work in progress to generalise it.

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

http://math.binghamton.edu/MATH/dept/topsem/index.html

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