3 problems

The explicit projector formula. The idempotent projecting $\lambda\otimes S$ onto the simple object indexed by $b$ is

Let $\mathbb{S}$ denote the spinor representation, and consider differential intertwining operators … with integral kernels…

Let $\widetilde{H}$ be the subgroup acting on spinor-valued principal series representations, and let the previously constructed spinor-valued differential intertwining operators b…