Stratified Langlands duality in the $A_n$ tower

Graham A. Niblo, Roger Plymen, Nick Wright

Let ${\mathbf{S}}_k$ denote a maximal torus in the complex Lie group $\mathbf{G}={\mathrm{SL}}_n(\mathbb{C})/C_k$ and let $T_k$ denote a maximal torus in its compact real form $\math…