FUNCTION: BnGaMult - multiplication of two elements of the Bn-group algebra

CALLING SEQUENCE:

BnGaMult(e_1, e_2)

BNA[BnGaMult](e_1, e_2)

PARAMETERS:

e_1, e_2 = any elements of the Bn-group algebra

SYNOPSIS:

• The BnGaMult function multiplies two elements of the Bn-group algebra.

• One can use instead the operator &!!*.

• Whenever there is a conflict between the function name BnGaMult and another name used in the same session, use the long form BNA['BnGaMult'].

EXAMPLES:

> with(BNA):
> a:=q + u/t*B[0,1,2]:
> b:=t - B[1,2,1]:
> BnGaMult(a, b);
 
                         u B[0, 2, 5]
        - q B[1, 2, 1] - ------------ + q t B[0, 0, 0] + u B[0, 1, 2]
                               t
 
> a &!!* b;
 
                         u B[0, 2, 5]
        - q B[1, 2, 1] - ------------ + q t B[0, 0, 0] + u B[0, 1, 2]
                               t