2 problems

Let $G$ be the group and let $\gamma$ be the coweight used to define the stacks $\mathcal Y_d$. For a $\check{G}$-local system $E$ on $X$, let $\mathcal W^d_{E,\psi}$ be the Whitta…

Let $G$ be a reductive group, let $U$ be the unipotent radical of a Borel subgroup, and let $T$ be the corresponding maximal torus. Fix a non-degenerate homomorphism…