i1 : W = QQ[x,y,Dx,Dy, WeylAlgebra => {x=>Dx, y=>Dy}] o1 = W o1 : PolynomialRing |
i2 : f = x^2-y^3 3 2 o2 = - y + x o2 : W |
i3 : g = 2*x*y o3 = 2x*y o3 : W |
i4 : I = RatAnn (g,f) 3 2 2 2 2 2 2 3 o4 = ideal (3x*Dx + 2y*Dy + 1, y Dy - x Dy + 6y Dy + 6y, 9y Dx Dy - 4y*Dy ------------------------------------------------------------------------ 2 2 3 2 2 2 + 27y*Dx + 2Dy , 9y Dx - 4y Dy + 10y*Dy - 10) o4 : Ideal of W |