[GAP Forum] multiplication of Lie objects in GAP

[Alexander Konovalov]

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.