Date: Monday, April 01, 2013
Location: 3088 East Hall (4:00 PM to 5:00 PM)
Title: Puzzles and (equivariant) cohomology of Grassmannians
Abstract: The Littlewood-Richardson numbers play an important role in symmetric function theory; in the representation theory of GL(n); and in computing the cohomology of Grassmanians. Knutson and Tao's puzzle rule gives a combinatorial interpretation of these numbers which has several nice symmetries. We will introduce the Puzzle Rule and explore some of the ideas behind the proof, including a combinatorial characterization of the equivariant cohomology ring of the Grassmannian.
Speaker: Rachel Karpman
Institution: UM
Event Organizer:
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