The combinatorics of Hessenberg varieties

12/01/2015 - 12:00pm
12/01/2015 - 12:55pm
Speaker: 
Mohamed Omar (HMC)
Abstract: 

Hessenberg varieties are subvarieties of full flag varieties that were introduced in relation to algorithms for computing eigenvalues and eigenvectors of operators. We introduce these varieties and discuss combinatorial aspects of them, including a combinatorial picture of their equivariant cohomology rings. This talk includes joint work with Pamela Harris and Erik Insko.

Where: 
Millikan 2099, Pomona College