Duality for Knizhnik–Zamolodchikov and Dynamical Operators

We consider the Knizhnik–Zamolodchikov and dynamical operators, both differential and difference, in the context of the $(\mathfrak{gl}_{k}, \mathfrak{gl}_{n})$-duality for the space of polynomials in $kn$ anticommuting variables. We show that the Knizhnik–Zamolodchikov and dynamical operators naturally exchange under the duality.