NAMIKAWA-WEYL GROUPS OF AFFINIZATIONS OF SMOOTH NAKAJIMA QUIVER VARIETIES

We give a description of the Namikawa-Weyl group of affinizations of smooth Nakajima quiver varieties based on combinatorial data of the un-derlying quiver, and compute some explicit examples. This extends a result of McGerty and Nevins for quiver varieties associated to Dynkin quivers.

Automated summary

We provide a description of the Namikawa-Weyl group of affinizations of smooth Nakajima quiver varieties based on the combinatorial data of the underlying quiver, and present several explicit examples. This extends the result of McGerty and Nevins for quiver varieties associated with Dynkin quivers.