1 problem

Let $n\geq 2$, and let $e\leq \sigma_1\leq \sigma_2\leq \Omega_n$. For the Kazhdan–Lusztig $R$-polynomial $\widetilde{R}_{\sigma_1,\sigma_2}(q)$, write $F_j(q)$ for the $q$-Fibonac…