2 problems

Geometric properties conjecture. For every such $\mathbf{e}$, $\mathcal{F}^{\mathbf{e}}(\lambda)$ is normal, Cohen–Macaulay, and has rational singularities. For parameters in…

For each of the five types considered—type $A$, odd symplectic, even symplectic, odd orthogonal, and even orthogonal—let $P(q)$ denote the corresponding Poincaré polynomial. Unimod…