Subgroup ($H$) information
| Description: | not computed |
| Order: | \(512\)\(\medspace = 2^{9} \) |
| Index: | \(2\) |
| Exponent: | not computed |
| Generators: |
$\left(\begin{array}{rr}
1 & 16 \\
16 & 25
\end{array}\right), \left(\begin{array}{rr}
1 & 2 \\
0 & 17
\end{array}\right), \left(\begin{array}{rr}
17 & 0 \\
0 & 1
\end{array}\right), \left(\begin{array}{rr}
31 & 16 \\
16 & 31
\end{array}\right), \left(\begin{array}{rr}
1 & 16 \\
16 & 17
\end{array}\right)$
|
| Nilpotency class: | not computed |
| Derived length: | not computed |
The subgroup is characteristic (hence normal), maximal, a semidirect factor, nonabelian, a $p$-group (hence nilpotent, solvable, supersolvable, monomial, elementary, and hyperelementary), and metabelian. Whether it is elementary, hyperelementary, monomial, simple, quasisimple, perfect, almost simple, or rational has not been computed.
Ambient group ($G$) information
| Description: | $C_2^3\times D_{16}:C_4$ |
| Order: | \(1024\)\(\medspace = 2^{10} \) |
| Exponent: | \(16\)\(\medspace = 2^{4} \) |
| Nilpotency class: | $4$ |
| Derived length: | $2$ |
The ambient group is nonabelian, a $p$-group (hence nilpotent, solvable, supersolvable, monomial, elementary, and hyperelementary), and metabelian.
Quotient group ($Q$) structure
| Description: | $C_2$ |
| Order: | \(2\) |
| Exponent: | \(2\) |
| Automorphism Group: | $C_1$, of order $1$ |
| Outer Automorphisms: | $C_1$, of order $1$ |
| Nilpotency class: | $1$ |
| 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
Since the subgroup $H$ is characteristic, the automorphism group $\operatorname{Aut}(G)$ of the ambient group acts on $H$, yielding a homomorphism $\operatorname{res} : \operatorname{Aut}(G) \to \operatorname{Aut}(H)$. The image of $\operatorname{res}$ on the inner automorphism group $\operatorname{Inn}(G)$ is the Weyl group $W = G / Z_G(H)$.
| $\operatorname{Aut}(G)$ | $(C_2^6\times C_4).C_2^6.C_2^6.C_2^6.\PSL(2,7)$ |
| $\operatorname{Aut}(H)$ | not computed |
| $\card{W}$ | \(8\)\(\medspace = 2^{3} \) |
Related subgroups
Other information
| Number of conjugacy classes in this autjugacy class | $1$ |
| Möbius function | not computed |
| Projective image | not computed |