# Character: X21+X22
# Comment: found 2.U4(2) inside 2.O8+(2) by hunting for standard generators 2A,5,9
# Ind: 0
# Irred-dim: 4
# Ring: Z
# Sparsity: 58%
# Maximum absolute entry: 1

local b, B, w, W, i, result, delta, idmat;

result := rec();

w := E(3); W := E(3)^2;
b := E(7)+E(7)^2+E(7)^4; B := -1-b;  # b7, b7**
i := E(4);
result.comment := "2U42 as 8 x 8 matrices\n";

result.generators := [
[[1,0,0,0,0,0,0,0],
[0,-1,0,0,0,0,0,0],
[1,0,0,0,1,0,0,-1],
[-1,0,1,-1,1,0,0,-1],
[-1,-1,1,-1,1,0,0,0],
[1,0,1,0,1,-1,0,-1],
[0,1,0,-1,1,0,1,-1],
[0,-1,0,-1,1,0,0,0]]
,
[[-1,0,-1,0,-1,1,1,1],
[1,0,-1,1,0,0,0,0],
[0,1,-1,0,-1,0,1,0],
[1,0,0,0,0,0,0,-1],
[1,0,0,1,0,0,0,-1],
[0,0,-1,0,0,0,1,0],
[0,0,0,0,-1,0,0,0],
[0,0,-1,1,-1,1,0,0]]];

result.symmetricforms := [ ];
result.antisymmetricforms := [ ]; 
result.hermitianforms := [ ]; 
result.centralizeralgebra := [ ];

return result;