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_normal__Elements.out
-- -*- M2-comint -*- hash: 9782482819645152043 i1 : B = threeDimSklyanin(QQ,{1,1,-1},{x,y,z}) --Calling Bergman for NCGB calculation. Complete! o1 = B o1 : NCQuotientRing i2 : basis(2,B) o2 = | x^2 y*x x*y y^2 x*z y*z | o2 : NCMatrix i3 : normalElements(B,2,r,s) Normal monomials of degree 2: 2 x 2 y Components of the normal variety, excluding normal monomials: o3 = {| r_(y*z) r_(x*z) r_(y*x)-r_(x*y) |} o3 : List i4 : normalElements(B,3,t,u) Normal monomials of degree 3: none Components of the normal variety, excluding normal monomials: o4 = {| t_(y^2*z) t_(y*x*z)+t_(x*y*z) t_(x^2*z) t_(y^3)-t_(x*y*z) t_(x*y^2) ------------------------------------------------------------------------ t_(y*x*y) t_(x^2*y) t_(x*y*x) t_(x^3)+t_(x*y*z) |} o4 : List i5 : g = -y^3-x*y*z+y*x*z+x^3 3 3 o5 = -y +yxz-xyz+x o5 : B i6 : isCentral g o6 = true i7 :
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