Sinica-NCTS Geometry Seminar

主講者: 吳思曄教授 (香港大學)
講題: Topology and flux of T-dual manifolds with circle and torus actions
時間: 2013-01-04 (Fri.)  16:00 - 17:00
地點: 數學所 617 研討室 (台大院區)
Abstract: T-duality is a concept arrising from compactification of type II string theories. From a mathematical perspective, we present an explicit formula for the topology and H-flux of the T-dual with respect to circle or torus action on a manifold. A new feature is that the T-dual manifold is a singular space when the action is not free. We propose that the Ramond-Ramond charges of type II string theories on the singular dual are classified by twisted equivariant cohomology groups. This is a joint work with Mathai.
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