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Hello,

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, (a1^c)*(a2)^(-1),(a2^c)*(a1*a2)^(-1), (b1^c)*(b2)^(-1),(b2^c)*(b1*b2)^(-1), (c^d)*(c^2)^(-1), (a2^d)*(a1*a2)^(-1),(b2^d)*(b1*b2)^(-1)]));

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?

Thanks,

Mark Lewis

----------

Mark L. Lewis

lewis@mcs.kent.edu

Department of Mathematics and Computer Science

Kent State University

Kent, OH 44242

Phone (330)672-4004 ext 272

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