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

Gus Schrader, Alexander Shapiro

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