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_nc__Map.out
-- -*- M2-comint -*- hash: 10197954078908587741 i1 : A = skewPolynomialRing(QQ,(-1)_QQ,{w,x,y,z}) --Calling Bergman for NCGB calculation. Complete! o1 = A o1 : NCQuotientRing i2 : B = QQ{a,b,c} o2 = B o2 : NCPolynomialRing i3 : f = ncMap(B,A,{a^3,b^2,a+b,a-b}) o3 = NCRingMap B <--- A o3 : NCRingMap i4 : f(w*x+2*y) 3 2 o4 = 2b+a b +2a o4 : B i5 : g = ncMap(B,B,{a*b,b^2,c*a*c},Derivation=>true) o5 = NCRingMap B <--- B o5 : NCRingMap i6 : g(a*b)==g(a)*b+a*g(b) o6 = true i7 : g(promote(1,B)) o7 = 0 o7 : B i8 : g(c*a+2*b) 2 o8 = caca+cab+2b o8 : B i9 :