The McKay correspondence in type $D_4$ via VGIT

Published 8 Feb 2024 in math.AG | (2402.05763v1)

Abstract: We present an explicit GIT construction which produces both the minimal resolution of the type $D_4$ surface singularity, and also the orbifold resolution. Our construction is based on a Tannakian approach which is in principle applicable to arbitrary quotient singularities.

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