Nilpotent orbits and Hilbert schemes

Abstract

We construct embeddings ${\mathcal{Y}}_{n,\tau }\to {Hilb}^n({\Sigma }_{\tau })$ for each of the classical Lie algebras $\ger{sp}_{2m}(\Cc)$, $\ger{so}_{2m}(\Cc)$, and $\ger{so}_{2m+1}(\Cc)$. The space ${\mathcal{Y}}_{n,\tau }$ is the fiber over a point $τ\in \ger h / W$ of the restriction of the adjoint quotient map $χ: \ger g \to \ger h /W$ to a suitably chosen transverse slice of a nilpotent orbit. These embeddings were discovered for $\ger{sl}_{2m}(\Cc)$ by Ciprian Manolescu. They are related to the symplectic link homology of Seidel and Smith.