[Binghamton Geometry/Topology Seminar] Geometry/Topology Seminar this Thursday

[Tam Nguyen Phan]

  BINGHAMTON GEOMETRY/TOPOLOGY SEMINAR


   Date: Thursday, September 17th, 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: Dmytro Yeroshkin (Syracuse  University)

   Title:  On Poincaré Duality for Orbifolds

    Abstract: This talk will examine the obstructions to integer-valued
Poincaré duality for (underlying spaces of) orbifolds. In particular, it
will be shown that in dimensions 4 and 5, the obstruction is controlled by
the orbifold fundamental group. A consequence of this is that if the
orbifold fundamental group is naturally isomorphic to the fundamental group
of the underlying space, then the orbifold satisfies integer-valued
Poincaré duality.

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

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