Mathematics Colloquium

When: Wednesday, September 18, 2013 3:15 PM - 4:15 PM

Where: Math Building : Colloquium Room 3206

Event Type(s): Colloquium

Speaker: Colleen Robles (IAS/Texas A&M)

Title: Rigidity and Flexibility of Schubert Classes

Abstract: Consider a rational homogeneous variety X. (For example, take X to be the Grassmannian Gr(k,n) of k-planes in complex n-space.) The Schubert classes of X form a free additive basis of the integral homology of X. Given a Schubert class [S], represented by a Schubert variety S in X, Borel and Haefliger asked: aside from the Schubert variety, does [S] admit any other algebraic representatives? I will discuss this, and related questions, in the case that X is Hermitian symmetric.

Website: http://www-math.umd.edu/research/colloquium.html

For more information, contact:

Linette Denise Berry

Department of Mathematics

+1 301 405 5058

lberry2@umd.edu

www-math.umd.edu