i1 : W = QQ[x,y,Dx,Dy, WeylAlgebra => {x=>Dx,y=>Dy}] o1 = W o1 : PolynomialRing |
i2 : M = W^1/(ideal(x*Dx+1, Dy)) o2 = cokernel | xDx+1 Dy | 1 o2 : W-module, quotient of W |
i3 : f = x^2-y^3 3 2 o3 = - y + x o3 : W |
i4 : DlocalizeMap(M, f) o4 = | y6-2x2y3+x4 | o4 : Matrix |