Speaker: Zhengyu Zong (Tsinghua University, Beijing)
Title: Equivariant mirror symmetry for non-Hamiltonian torus actions
Abstract: Equivariant mirror symmetry has been studied in various cases, while most of them are when the torus action is Hamiltonian. In this talk, I will introduce equivariant mirror symmetry for non-Hamiltonian torus actions. The target spaces arise from the quotients of certain kind of toric varieties of infinite type by a discrete group action. I will first review the equivariant mirror symmetry for toric varieties of finite type. Then I will discuss the generalization to the infinite type case and the quotient case, where the torus action is non-Hamiltonian in the later case.