Invariant differential operators and the generalized symmetric group

Ibrahim Nonkané, Latévi M. Lawson

In this paper we study the decomposition of the direct image of $π_+(\Oc_{X})$ the polynomial ring $\Oc_X$ as a $\D$-module, under the map $π: \spec \Oc_{X} \to \spec \Oc_{X}^{G(r,…