Dear Jianrong, GAP 4.6.2 which was just announced in the GAP Forum, has a new attribute 'UnderlyingRingElement'. If x and y are Lie objects, then the 'usual' multiplication may be computed with
UnderlyingRingElement(x)*UnderlyingRingElement(y) (note that the result will NOT be a Lie object). Hope this helps, Alexander On 1 Jan 2013, at 14:04, 李建荣 wrote: > Dear Forum, > > I have a Lie algebra A whose basis is given by matrices explicitly. When I > create the algebra A, the matrices in the basis of A are denoted by > LieObject... Let x, y in the basis of A. It seems that x*y is the same as [x, > y]. How could I compute the usual multiplication of x and y? Thank you very > much. > > With best wishes, > Jianrong. _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
