On Cohen-Macaulayness of S_n-invariant subspace arrangements

Aaron Brookner, David Corwin, Pavel Etingof +1

Given a partition $\lambda$ of n, consider the subspace $E_{\lambda }$ of $C^n$ where the first ${\lambda }_1$ coordinates are equal, the next ${\lambda }_2$ coordinates are equal, etc. In this paper, we study sub…