Properties

Label 1600.9909.400.j1
Order $ 2^{2} $
Index $ 2^{4} \cdot 5^{2} $
Normal No

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Subgroup ($H$) information

Description:$C_4$
Order: \(4\)\(\medspace = 2^{2} \)
Index: \(400\)\(\medspace = 2^{4} \cdot 5^{2} \)
Exponent: \(4\)\(\medspace = 2^{2} \)
Generators: $b^{2}c^{5}d^{5}$ Copy content Toggle raw display
Nilpotency class: $1$
Derived length: $1$

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

Ambient group ($G$) information

Description: $D_{10}^2.C_2^2$
Order: \(1600\)\(\medspace = 2^{6} \cdot 5^{2} \)
Exponent: \(20\)\(\medspace = 2^{2} \cdot 5 \)
Derived length:$2$

The ambient group is nonabelian, supersolvable (hence solvable and monomial), and metabelian.

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_5:F_5.C_2^5.C_2^6$
$\operatorname{Aut}(H)$ $C_2$, of order \(2\)
$\operatorname{res}(S)$$C_2$, of order \(2\)
$\card{\operatorname{ker}(\operatorname{res})}$\(2048\)\(\medspace = 2^{11} \)
$W$$C_2$, of order \(2\)

Related subgroups

Centralizer:$C_2^3\times C_4$
Normalizer:$C_2^3.D_4$
Normal closure:$C_5^2:C_4$
Core:$C_2$
Minimal over-subgroups:$C_5:C_4$$C_5:C_4$$C_2\times C_4$$C_2\times C_4$$C_2\times C_4$$C_2\times C_4$
Maximal under-subgroups:$C_2$

Other information

Number of subgroups in this autjugacy class$50$
Number of conjugacy classes in this autjugacy class$2$
Möbius function$0$
Projective image$D_{10}^2.C_2$