Subgroup ($H$) information
| Description: | $\GL(2,3):D_5$ |
| Order: | \(480\)\(\medspace = 2^{5} \cdot 3 \cdot 5 \) |
| Index: | \(55\)\(\medspace = 5 \cdot 11 \) |
| Exponent: | \(120\)\(\medspace = 2^{3} \cdot 3 \cdot 5 \) |
| Generators: |
$\left(\begin{array}{rrrr}
8 & 7 & 7 & 3 \\
2 & 2 & 9 & 7 \\
5 & 9 & 5 & 4 \\
10 & 5 & 9 & 10
\end{array}\right), \left(\begin{array}{rrrr}
8 & 1 & 6 & 3 \\
0 & 6 & 1 & 3 \\
5 & 4 & 7 & 4 \\
9 & 9 & 6 & 4
\end{array}\right), \left(\begin{array}{rrrr}
7 & 4 & 7 & 0 \\
7 & 4 & 0 & 4 \\
3 & 0 & 4 & 4 \\
0 & 8 & 7 & 7
\end{array}\right), \left(\begin{array}{rrrr}
1 & 8 & 4 & 7 \\
3 & 8 & 7 & 8 \\
2 & 2 & 7 & 10 \\
9 & 5 & 7 & 6
\end{array}\right), \left(\begin{array}{rrrr}
4 & 5 & 5 & 2 \\
4 & 10 & 4 & 4 \\
5 & 4 & 8 & 3 \\
1 & 7 & 1 & 0
\end{array}\right), \left(\begin{array}{rrrr}
2 & 8 & 3 & 5 \\
5 & 3 & 9 & 3 \\
5 & 4 & 8 & 3 \\
6 & 5 & 6 & 9
\end{array}\right), \left(\begin{array}{rrrr}
10 & 0 & 0 & 0 \\
0 & 10 & 0 & 0 \\
0 & 0 & 10 & 0 \\
0 & 0 & 0 & 10
\end{array}\right)$
|
| Derived length: | $4$ |
The subgroup is maximal, nonabelian, and solvable.
Ambient group ($G$) information
| Description: | $\GL(2,11):C_2$ |
| Order: | \(26400\)\(\medspace = 2^{5} \cdot 3 \cdot 5^{2} \cdot 11 \) |
| Exponent: | \(1320\)\(\medspace = 2^{3} \cdot 3 \cdot 5 \cdot 11 \) |
| Derived length: | $2$ |
The ambient group is nonabelian 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 $W = N_G(H) / Z_G(H)$.
| $\operatorname{Aut}(G)$ | $C_2\times \PSL(2,11).C_2\times C_2\times F_5$ |
| $\operatorname{Aut}(H)$ | $C_2^2\times F_5\times S_4$, of order \(1920\)\(\medspace = 2^{7} \cdot 3 \cdot 5 \) |
| $W$ | $D_5\times S_4$, of order \(240\)\(\medspace = 2^{4} \cdot 3 \cdot 5 \) |
Related subgroups
Other information
| Number of subgroups in this conjugacy class | $55$ |
| Möbius function | $-1$ |
| Projective image | not computed |