Speaker
Gwyn Bellamy
(University of Glasgow)
Description
In their landmark paper in 2016, Braverman-Finkelberg-Nakajima gave a mathematically rigour definition of the Coulomb branch of 3d N=4 supersymmetric gauge theories (of cotangent type). This broad class of spaces have many remarkable properties and are expected to play a key role in developing a geometric representation theory around "double affine Grassmannians". In particular, they conjectured that these spaces should be examples of symplectic singularities. In this talk I'll describe some of the basic properties of these spaces and outline a simple proof of the fact that they have do indeed have symplectic singularities.
