Universal Coulomb branch and theta-sheaves

Abstract: In the first half of the talk I shall recall basic definitions related to derived geometric Satake equivalence and its relation to construction of Coulomb branches of 3d N=4 gauge theories (no physics background is assumed). In the 2nd half I will describe certain "universal Coulomb object" on the affine Grassmannian of the group Sp(2n) (following suggestions by Drinfeld and Raskin) and discuss its relation with the so called theta-sheaf studied by Lafforgue and Lysenko.

algebraic geometrysymplectic geometry

Audience: researchers in the topic

M-seminar