$K$-theoretic Coulomb branches of quiver gauge theories and cluster varieties

Gus Schrader, Alexander Shapiro

For $\Gamma$ a quiver without 1-cycles, we show that the Braverman--Finkelberg--Najakima quantized $K$-theoretic Coulomb branch algebra ${\mathcal{A}}_{\Gamma }$ of the corresponding quiver gauge…