| Colloquium 15:00-15:50 in MS 6627 Host: Manolescu Mikhail Khovanov (Columbia University) Categorification of quantum groups. Abstract. We'll introduce a family of rings whose Grothendieck groups can be naturally identified with weight spaces of the positive half of the universal enveloping algebra of a simple Lie algebra. Induction and restriction functors descend to multiplication and comultiplication in the universal enveloping algebra.
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Tea is served in the graduate lounge at 4pm |