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___N__C__Ring__Map.out
-- -*- M2-comint -*- hash: 2743948095948013766 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 : target f o4 = B o4 : NCPolynomialRing i5 : source f o5 = A o5 : NCQuotientRing i6 : matrix f o6 = | a^3 b^2 b+a -b+a | o6 : NCMatrix i7 : f(w*x+2*y) 3 2 o7 = 2b+a b +2a o7 : B i8 : isWellDefined f o8 = false i9 : isHomogeneous f o9 = false i10 : g = ncMap(B,B,{a*b,b^2,c*a*c},Derivation=>true) o10 = NCRingMap B <--- B o10 : NCRingMap i11 : g(a*b)==g(a)*b+a*g(b) o11 = true i12 : g(promote(1,B)) o12 = 0 o12 : B i13 : g(c*a+2*b) 2 o13 = caca+cab+2b o13 : B i14 :
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