Coulomb branches of noncotangent type (with appendices by Gurbir Dhillon and Theo Johnson-Freyd)

Alexander Braverman, Gurbir Dhillon, Michael Finkelberg +2

We propose a construction of the Coulomb branch of a $3d\mathcal{N}=4$ gauge theory corresponding to a choice of a connected reductive group $G$ and a symplectic finite-dimensio…