Dear GAP Forum,
Amy E. Ksir asked:
> I'm trying to compute the character for the representation of the action
> of a Weyl group on the cosets of a maximal Weyl subgroup. I found the command
> "PermutationCharacter" which seems to do what I want for small groups
> but for larger ones gives me the following:
> gap> PermutationCharacter(we7p,we7u7);
(By private eMail you told me you are using GAP 3.3 and the Weyl package.)
This is a known error in GAP 3.3, the old version you are using. The current
version 3.4.4 has this error fixed.
If you upgrade to 3.4.4, please note that the Weyl package has been
incorporated in the Chevie package, Frank Luebeck mentioned already.
I hope this is of help.