Topology Seminar: Yongbin Ruan

  • Date: 11/28/2013
  • Time: 15:00
Yongbin Ruan (University of Michigan)

University of British Columbia


Mirror symmetry and modular forms


Traditionally, we use mirror symmetry to map a difficult problem (A-model) to an easier problem (B-model). Recently, there is a great deal of activities in mathematics to understand the modularity properties of Gromov-Witten theory, a phenomenon suggested by BCOV almost twenty years ago. Mirror symmetry is again used in a crucial way. However, the new usage of mirror does not map a difficult problem to easy problem. Instead, we make both side of mirror symmetry to work together in a deep way. I will explain this interesting phenomenon in the talk. First we will give an overview of the entire story and then we will focus on the appearance of quasi-modularity.

Other Information: 

Location: ESB 4133