McKay correspondence and Hilbert schemes in dimension three

Yukari Ito, Hiraku Nakajima

Let $G$ be a nontrivial finite subgroup of $\SL_n(\C)$. Suppose that the quotient singularity $\C^n/G$ has a crepant resolution $π\colon X\to \C^n/G$ (i.e. $K_X = \shfO_X$). There…