[GAP Forum] Structure constants of E7(2) and E8(2)

Bill Allombert Bill.Allombert at math.u-bordeaux.fr
Mon Jun 22 22:00:40 BST 2015


On Tue, Jun 23, 2015 at 04:06:43AM +0800, 刘建军 wrote:
> Dear forum,
> 
> I would like to know whether there is a way to compute the structure constants of Exceptional groups of Lie type E7(2) and E8(2) using GAP.
> 
> The “CharacterTable(SimpleGroup(E7(2))” returns an  Error, so the command “ClassMultiplicationCoefficient” is not valid.
> 
> Is there a method to get it?

I do not know if this is relevant, but the correct syntax is

SimpleGroup("E7(2)");

(with quotes around E7(2))

Cheers,
Bill



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