> < ^ Date: Wed, 04 Jun 1997 09:07:44 -0400
^ From: Mark Lewis <lewis@mcs.kent.edu >
> ^ Subject: Generating a Character Table


I am new to this forum, and I have the following problem:
I load in a file with the following group.

c := AbstractGenerator ("c");
d := AbstractGenerator ("d");
a1 := AbstractGenerator ("a1");
a2 := AbstractGenerator ("a2");
b1 := AbstractGenerator ("b1");
b2 := AbstractGenerator ("b2");

g3 := AgGroupFpGroup( rec(
    generators := [d,c,a1,a2,b1,b2],
    relators := [b1^2,b2^2,a1^2*(b1)^(-1),a2^2*(b2)^(-1),c^3,d^2,

This group seems to load ok, but when I ask GAP to compute the character
table of g3, I get the following response.

gap> Read ("chardegs.m");
gap> t3 := CharTable (g3);
#W Warning: Group has no name
Error, List Element: <list>[6] must have a value at
if not used[i] and Length( con[1].perm ) = Length( replist[i][1].perm ) ... in
liftreps( replist ) called from
RepresentationsPGroup( g, 1 ) called from
CharTablePGroup( G, "meckere nicht" ) called from
DixonInit( G, opt ) called from
arg[1].operations.CharTable( arg[1] ) called from

Could someone please tell me what I am doing wrong? Is there a problem
with my presentation, or is this a bug in GAP?


Mark Lewis

Mark L. Lewis
Department of Mathematics and Computer Science
Kent State University
Kent, OH 44242
Phone (330)672-4004 ext 272

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