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CAGE: Philadelphia Area Combinatorics and Alg. Geometry Seminar

Tuesday, September 11, 2012 - 2:00pm

Mahir Can

Tulane and Yale

Location

University of Pennsylvania

DRL 4C2

The center of the symmetric group ring plays an important role for mathematics. Less known is that it can be interpreted as a commutative Hecke ring.

Motivated by this observation, in this talk, in analogy with the set of Jucys- Murphy elements we present a construction of a set of ring generators for the Hecke algebra of the Gel'fand pair $(S_{2n},B_n)$, where $B_n$ is the hyperoctahedral subgroup of the symmetric group $S_{2n}$. Along the way we present various applications of our work, ranging from the cohomology ring of the Hilbert scheme of points in the plane to the Weingarten matrices.

This is a joint work with Kursat Aker.