2 problems

Let $\widetilde{\mathfrak{g}}$ be a twisted loop algebra with $\epsilon(\mathfrak{h})=0$. Let $\widehat{\rho}$ be the Weyl vector determined by the simple roots of…

Let $N=n+m$, let $f$ be any nilpotent element of $\mathfrak{sl}_N$, and let … Here $s(\lambda)$ is the lattice-label map defined in the source, and $k$ and $\ell$ are related to…