Properties

Label 1024.dhh.64.cm2
Order $ 2^{4} $
Index $ 2^{6} $
Normal No

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Subgroup ($H$) information

Description:$C_2\times C_8$
Order: \(16\)\(\medspace = 2^{4} \)
Index: \(64\)\(\medspace = 2^{6} \)
Exponent: \(8\)\(\medspace = 2^{3} \)
Generators: $\langle(1,4,2,3)(5,8,6,7)(9,12,10,11)(13,15,14,16), (1,9,6,13,2,10,5,14)(3,11,8,16,4,12,7,15) \!\cdots\! \rangle$ Copy content Toggle raw display
Nilpotency class: $1$
Derived length: $1$

The subgroup is abelian (hence nilpotent, solvable, supersolvable, monomial, metabelian, and an A-group), a $p$-group (hence elementary and hyperelementary), and metacyclic.

Ambient group ($G$) information

Description: $C_2^4.C_2\wr C_4$
Order: \(1024\)\(\medspace = 2^{10} \)
Exponent: \(16\)\(\medspace = 2^{4} \)
Nilpotency class:$7$
Derived length:$3$

The ambient group is nonabelian and a $p$-group (hence nilpotent, solvable, supersolvable, monomial, elementary, and hyperelementary).

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_2^7.C_2\wr C_2^2$, of order \(8192\)\(\medspace = 2^{13} \)
$\operatorname{Aut}(H)$ $C_2\times D_4$, of order \(16\)\(\medspace = 2^{4} \)
$\operatorname{res}(S)$$C_2\times D_4$, of order \(16\)\(\medspace = 2^{4} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(32\)\(\medspace = 2^{5} \)
$W$$C_2^2$, of order \(4\)\(\medspace = 2^{2} \)

Related subgroups

Centralizer:$C_2\times C_8$
Normalizer:$C_2^3.D_4$
Normal closure:$(C_2^2\times D_4).C_4^2$
Core:$C_2$
Minimal over-subgroups:$C_2\times \OD_{16}$$D_4:C_4$
Maximal under-subgroups:$C_2\times C_4$$C_8$

Other information

Number of subgroups in this autjugacy class$16$
Number of conjugacy classes in this autjugacy class$1$
Möbius function$0$
Projective image$C_2^5.D_8$