Subgroup ($H$) information
| Description: | $\SL(2,11):S_3$ |
| Order: | \(7920\)\(\medspace = 2^{4} \cdot 3^{2} \cdot 5 \cdot 11 \) |
| Index: | \(2\) |
| Exponent: | \(660\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \cdot 11 \) |
| Generators: |
$\left(\begin{array}{rrrr}
0 & 3 & 10 & 0 \\
10 & 0 & 0 & 1 \\
9 & 0 & 0 & 3 \\
0 & 2 & 10 & 0
\end{array}\right), \left(\begin{array}{rrrr}
3 & 2 & 9 & 2 \\
4 & 7 & 7 & 8 \\
1 & 5 & 5 & 5 \\
5 & 10 & 7 & 7
\end{array}\right), \left(\begin{array}{rrrr}
2 & 8 & 1 & 4 \\
10 & 6 & 0 & 1 \\
9 & 2 & 4 & 3 \\
9 & 9 & 1 & 8
\end{array}\right), \left(\begin{array}{rrrr}
4 & 2 & 5 & 8 \\
3 & 9 & 8 & 5 \\
10 & 10 & 3 & 9 \\
1 & 10 & 8 & 8
\end{array}\right), \left(\begin{array}{rrrr}
10 & 0 & 0 & 0 \\
0 & 10 & 0 & 0 \\
0 & 0 & 10 & 0 \\
0 & 0 & 0 & 10
\end{array}\right)$
|
| Derived length: | $2$ |
The subgroup is normal, maximal, a semidirect factor, nonabelian, and nonsolvable.
Ambient group ($G$) information
| Description: | $\SL(2,11):D_6$ |
| Order: | \(15840\)\(\medspace = 2^{5} \cdot 3^{2} \cdot 5 \cdot 11 \) |
| Exponent: | \(660\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \cdot 11 \) |
| Derived length: | $2$ |
The ambient group is nonabelian and nonsolvable.
Quotient group ($Q$) structure
| Description: | $C_2$ |
| Order: | \(2\) |
| Exponent: | \(2\) |
| Automorphism Group: | $C_1$, of order $1$ |
| Outer Automorphisms: | $C_1$, of order $1$ |
| Derived length: | $1$ |
The quotient is cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary, hyperelementary, metacyclic, metabelian, a Z-group, and an A-group), a $p$-group, simple, and rational.
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 $W = N_G(H) / Z_G(H)$.
| $\operatorname{Aut}(G)$ | $(S_3\times D_4).\PSL(2,11).C_2$ |
| $\operatorname{Aut}(H)$ | $C_2\times \PSL(2,11).C_2\times S_3$ |
| $\card{W}$ | \(7920\)\(\medspace = 2^{4} \cdot 3^{2} \cdot 5 \cdot 11 \) |
Related subgroups
Other information
| Möbius function | $-1$ |
| Projective image | not computed |