FUNCTION: BnaPalin2Code - convert palindromic permutations into codes

CALLING SEQUENCE:

BnaPalin2Code(e, n)

BNA[BnaPalin2Code](e, n)

PARAMETERS:

e = any element of any An-algebra

n = any positive integer

SYNOPSIS:

• The BnaPalin2Code function converts all palindromic permutations that appear in the element e into codes of B(n). The element e should belong to the group algebra of S(2n).

• Whenever there is a conflict between the function name BnaPalin2Code and another name used in the same session, use the long form BNA['BnaPalin2Code'].

EXAMPLES:

> with(BNA):
> BnaPalin2Code(q*A[2,4,1,3,6,8,5,7] - q^2*A[2,5,3,1,8,6,4,7], 4);
 
                                       2
                    q B[0, 1, 0, 2] - q  B[1, 1, 0, 3]