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# Thomas Lam : First steps in affine Schubert calculus

I will explain some attempts to develop a theory of Schubert calculus on the affine Grassmannian. I will begin with the different descriptions of the (co)homology rings due to Bott, Kostant and Kumar, and Ginzburg. Then I will discuss the problems of finding polynomial representatives for Schubert classes and the explicit determination of structure constants in (co)homology.

**Category**: Algebraic Geometry**Duration**: 01:34:46**Date**: January 31, 2007 at 4:25 PM**Views**: 156-
**Tags:**seminar, Algebraic Geometry Seminar

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