4 problems

Let ${\rm R}$ be an integral domain in which $2$ is invertible. Let $\mathfrak{H}_{\Delta}(n)^{g}$ be the cyclotomic Sergeev algebra, let…

Let $r,p,n$ be the parameters of the cyclotomic Hecke algebras, let $K$ be the relevant specialization field, let $\mathscr{K}$ be the generic field, and let…

Let $\Bbbk$ be a field, let $\mathpzc{Web}_{\mathbf u}$ be the cyclotomic web category, let $W(\Lambda)$ be the associated $W$-algebra, and let $\widehat\Phi$ be the functor from…

Let $\beta\in Q_n^+$ and let $\Lambda\in P^+$. Let $p_\beta^\Lambda:\mathscr{R}_\beta\twoheadrightarrow\mathscr{R}_\beta^\Lambda$ be the canonical surjection. The center…