2 problems

Let $R_0$ be a root system of type $B_n$, let $\bbH$ be the associated graded Hecke algebra with long-root label $k_1\neq 0$ and short-root label $k_2=mk_1$, where…

Let $\mathbb H$ be the graded Hecke algebra, let $\Delta$ be its set of simple roots, and for $I\subset\Delta$ let $\widetilde{\mathbb H}_I$ be the corresponding graded Hecke algeb…