Title: On stringy algebraic operations in equivariant K-theory

Speaker: Prof. Takashi Kimura (Boston University)

Time: Monday August 1, 2011, 14:00-16:00 pm

Venue: Room 1328 at BICMR, Resource Plaza, Peking University

Abstract: We will introduce and explain some new algebraic structures associated to a smooth variety with a proper action of an algebraic group that are invariants of the associated quotient orbifold Such algebraic structures arise from their orbifold K-theory ring, a K-theoretic variant of Chen-Ruan orbifold cohomology, and generalize more familiar operations in ordinary K-theory.