主讲人 / SpeakerHenry Liu 刘华昕 (IPMU)时间 / TimeEvery Tuesday from April 1st to 29th, 3:30-5:30 pm地点 / VenueC654, Shuangqing Complex Building AWall-crossing and vertex algebras, in cohomology, K-theory, and beyond课程介绍 / DescriptionVariations of stability conditions, and geometric methods relating different (semi)stable loci in moduli spaces, are powerful techniques in enumerative geomet...
Abstract: In this talk, I will introduce a virtual variant of the quantized Coulomb branch constructed by Braverman-Finkelberg-Nakajima, where the convolution product is modified by a virtual intersection. The resulting virtual Coulomb branch acts on the moduli space of quasimaps into the holomorphic symplectic quotient T^*N///G. When G is abelian, over the torus fixed points, this representati...