[Binghamton Geometry/Topology Seminar] no seminar today

[Marco Varisco]

BINGHAMTON GEOMETRY/TOPOLOGY SEMINAR
  http://www.math.binghamton.edu/dept/topsem/


Today's seminar has been CANCELED, because of the bad weather forecast
for tonight.

Tara Holm's talk is now rescheduled for Thursday, February 5, 2009.




On Mon, Dec 8, 2008 at 8:15 AM, Marco Varisco <marco at math.binghamton.edu> wrote:
> BINGHAMTON GEOMETRY/TOPOLOGY SEMINAR
>  http://www.math.binghamton.edu/dept/topsem/
>
> Date:  Thursday, December 11, 2008
>
> Time:  2:50 pm
>
> Place:  Library North 2205
>  (followed by coffee/tea in the Anderson Reading Room)
>
> Speaker:  Tara Holm (Cornell University)
>
> Title:  Divided difference operators in equivariant cohomology
>
> Abstract:  Newton introduced divided differences to define
> interpolation polynomials fitting data points. More recently, Demazure
> and Bernstein-Gelfand-Gelfand have used divided difference operators
> when studying the cohomology of flag varieties. These operators may be
> defined more generally on Borel's equivariant cohomology. I shall
> begin with a brief introduction to equivariant cohomology, discuss the
> construction of the divided difference operators, and show how they
> can be used computationally. This talk is based on joint work with
> Reyer Sjamaar.
>