TQFTs with values in holomorphic symplectic varieties

14 February 2019
Maxence Mayrand

I will describe a family of 2d TQFTs, due to Moore-Tachikawa, which take values in a category whose objects are Lie groups and whose morphisms are holomorphic symplectic varieties. They link many interesting aspects of geometry, such as moduli spaces of solutions to Nahm equations, hyperkähler reduction, and geometric invariant theory.

  • Junior Geometry and Topology Seminar