2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/78763We set up a framework for discussing `$q$-analogues' of the usual covariant differential operators for hermitian symmetric spaces. This turns out to be directly related to the deformation quantization associated to quadratic algebras satisfying certain conditions introduced by Procesi and De Concini.Quantum AlgebraRings and Algebrastext