# F:=RationalField(); local result, l; result:= rec(); result.comment:= "A5 as 5 x 5 matrices over Z.\n\ "; result.symmetricforms:= []; result.antisymmetricforms:= []; result.hermitianforms:= []; result.centralizeralgebra:= []; result.generators:= List( [ [ 1,0,0,0,0, 0,0,1,0,0, 0,1,0,0,0, 0,0,0,1,0, -1,-1,-1,-1,-1] ,[ 0,1,0,0,0, 0,0,0,1,0, 0,0,0,0,1, 1,0,0,0,0, -1,-1,-1,-1,-1] ], l -> List( [ 0 .. 4 ], i -> l{ [ i*5+1 .. (i+1)*5 ] } ) ); return result;