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Regular version of the site

Working paper

Coulomb branches of 3d =4 quiver gauge theories and slices in the affine Grassmannian

Braverman A., Finkelberg M. V., Nakajima H.
We study Coulomb branches of unframed and framed quiver gauge theories of type ADE. In the unframed case they are isomorphic to the moduli space of based rational maps from ℂP1 to the flag variety. In the framed case they are slices in the affine Grassmannian and their generalization. In the appendix, written jointly with Joel Kamnitzer, Ryosuke Kodera, Ben Webster, and Alex Weekes, we identify the quantized Coulomb branch with the truncated shifted Yangian.