Determine for the monoid ring K [ X , Y , Z ] / ( Z W − X Y ) {\displaystyle {}K[X,Y,Z]/(ZW-XY)} the canonical unitary differential operators (and their order) for the monomials
![{\displaystyle {}K[X,Y,Z]/(ZW-XY)}](https://wikimedia.org/api/rest_v1/media/math/render/svg/1e7860f5961ec30fb2306d2e57d921907b950e16)
