Subgroup ($H$) information
| Description: | $C_2\times \PSU(3,2)$ |
| Order: | \(144\)\(\medspace = 2^{4} \cdot 3^{2} \) |
| Index: | \(84240\)\(\medspace = 2^{4} \cdot 3^{4} \cdot 5 \cdot 13 \) |
| Exponent: | \(12\)\(\medspace = 2^{2} \cdot 3 \) |
| Generators: |
$\left[ \left(\begin{array}{rrrr}
0 & 2 & 0 & 1 \\
1 & 1 & 0 & 0 \\
2 & 1 & 1 & 2 \\
0 & 1 & 0 & 0
\end{array}\right) \right], \left[ \left(\begin{array}{rrrr}
1 & 0 & 1 & 0 \\
1 & 0 & 1 & 1 \\
2 & 0 & 1 & 2 \\
0 & 2 & 1 & 1
\end{array}\right) \right], \left[ \left(\begin{array}{rrrr}
1 & 2 & 0 & 2 \\
2 & 0 & 2 & 0 \\
0 & 2 & 1 & 1 \\
2 & 0 & 1 & 0
\end{array}\right) \right], \left[ \left(\begin{array}{rrrr}
1 & 2 & 2 & 1 \\
1 & 1 & 2 & 2 \\
1 & 1 & 1 & 1 \\
2 & 1 & 2 & 1
\end{array}\right) \right], \left[ \left(\begin{array}{rrrr}
1 & 0 & 1 & 1 \\
0 & 1 & 2 & 1 \\
1 & 1 & 2 & 1 \\
2 & 0 & 1 & 0
\end{array}\right) \right], \left[ \left(\begin{array}{rrrr}
1 & 1 & 2 & 0 \\
1 & 1 & 1 & 0 \\
1 & 2 & 0 & 0 \\
2 & 2 & 0 & 1
\end{array}\right) \right]$
|
| Derived length: | $3$ |
The subgroup is nonabelian, monomial (hence solvable), and rational.
Ambient group ($G$) information
| Description: | $\PGL(4,3)$ |
| Order: | \(12130560\)\(\medspace = 2^{8} \cdot 3^{6} \cdot 5 \cdot 13 \) |
| Exponent: | \(4680\)\(\medspace = 2^{3} \cdot 3^{2} \cdot 5 \cdot 13 \) |
| Derived length: | $1$ |
The ambient group is nonabelian, almost simple, and nonsolvable.
Automorphism information
While the subgroup $H$ is not characteristic, the stabilizer $S$ of $H$ in the automorphism group $\operatorname{Aut}(G)$ of the ambient group acts on $H$, yielding a homomorphism $\operatorname{res} : S \to \operatorname{Aut}(H)$. The image of $\operatorname{res}$ on the inner automorphisms $\operatorname{Inn}(G) \cap S$ is the Weyl group $W = N_G(H) / Z_G(H)$.
| $\operatorname{Aut}(G)$ | $\PSL(4,3).C_2^2$, of order \(24261120\)\(\medspace = 2^{9} \cdot 3^{6} \cdot 5 \cdot 13 \) |
| $\operatorname{Aut}(H)$ | $C_6^2:\GL(2,3)$, of order \(1728\)\(\medspace = 2^{6} \cdot 3^{3} \) |
| $\card{W}$ | \(288\)\(\medspace = 2^{5} \cdot 3^{2} \) |
Related subgroups
Other information
| Number of subgroups in this autjugacy class | $42120$ |
| Number of conjugacy classes in this autjugacy class | $2$ |
| Möbius function | not computed |
| Projective image | not computed |