A derivation d:M->L depends on a Lie homomorphism f:M->L, which may be obtained as d.maplie.
i1 : L=lieAlgebra({y,z},{},genSigns=>1) o1 = L o1 : LieAlgebra |
i2 : M=lieAlgebra({a,b},{},genSigns=>1) o2 = M o2 : LieAlgebra |
i3 : f = mapLie(L,M,{[y],[]}) o3 = f o3 : MapLie |
i4 : d = derLie(f,{[y,y],[y,z]}) o4 = d o4 : DerLie |
i5 : d.maplie===f o5 = true |