[GAP Forum] Matrix group

Nicola SOTTOCORNOLA nicola.sottocornola at wanadoo.fr
Fri Aug 13 12:17:16 BST 2004

Dear Gap-forum,

I'm trying to study the 80 elements group generated by the matrices




This group has a normal subgroup H of size 16.

[ <group of 5x5 matrices of size 16 in characteristic 0> ]

I'd like to study the structure of H. Why I obtain the following error msg?

gap> P := PresentationViaCosetTable(H);;
Error, first argument must be a group called from
<function>( <arguments> ) called from read-eval-loop
Entering break read-eval-print loop ...
you can 'quit;' to quit to outer loop, or
you can 'return;' to continue

Thanks, Nicola

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