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Title:
Verlinde/Grassmanian Correspondence and quantum K-theory

Speaker:
Yongbin Ruan

Abstract:
More than twenty years ago, Witten proposed an equivalence of two quantum fields governing Verlinde algebra (or the theory of stable bundles over a curve) and the quantum cohomology of Grassmanian. Motivated by Witten's physical work and recent revival of quantum K-theory, we proposed a K-theoretic version of so called Verlinde/Grassmanian correspondence. We will first review the new ingredient of level structure in quantum K-theory and surprising appearance of mock theta function. Then, we will present a proof of correspondence in rank two using wall-crossing technique. This is a joint work with Davesh Maulik and Ming Zhang

Link:
http://scgp.stonybrook.edu/video_portal/video.php?id=3913

Workshop:
Simons- Workshop: Vertex Algebras and Gauge Theory