Properties

Label 1600.5593.50.b1
Order $ 2^{5} $
Index $ 2 \cdot 5^{2} $
Normal Yes

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Subgroup ($H$) information

Description:$\OD_{32}$
Order: \(32\)\(\medspace = 2^{5} \)
Index: \(50\)\(\medspace = 2 \cdot 5^{2} \)
Exponent: \(16\)\(\medspace = 2^{4} \)
Generators: $a^{5}c, b^{5}$ Copy content Toggle raw display
Nilpotency class: $2$
Derived length: $2$

The subgroup is normal, a semidirect factor, nonabelian, a $p$-group (hence nilpotent, solvable, supersolvable, monomial, elementary, and hyperelementary), and metacyclic (hence metabelian).

Ambient group ($G$) information

Description: $C_{16}.C_{10}^2$
Order: \(1600\)\(\medspace = 2^{6} \cdot 5^{2} \)
Exponent: \(80\)\(\medspace = 2^{4} \cdot 5 \)
Nilpotency class:$2$
Derived length:$2$

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

Quotient group ($Q$) structure

Description: $C_5\times C_{10}$
Order: \(50\)\(\medspace = 2 \cdot 5^{2} \)
Exponent: \(10\)\(\medspace = 2 \cdot 5 \)
Automorphism Group: $\GL(2,5)$, of order \(480\)\(\medspace = 2^{5} \cdot 3 \cdot 5 \)
Outer Automorphisms: $\GL(2,5)$, of order \(480\)\(\medspace = 2^{5} \cdot 3 \cdot 5 \)
Nilpotency class: $1$
Derived length: $1$

The quotient is abelian (hence nilpotent, solvable, supersolvable, monomial, metabelian, and an A-group), elementary for $p = 5$ (hence hyperelementary), and metacyclic.

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_2^2\times A_4).C_2^4.S_5$
$\operatorname{Aut}(H)$ $D_4:C_2^2$, of order \(32\)\(\medspace = 2^{5} \)
$\operatorname{res}(S)$$D_4:C_2^2$, of order \(32\)\(\medspace = 2^{5} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(960\)\(\medspace = 2^{6} \cdot 3 \cdot 5 \)
$W$$C_2^2$, of order \(4\)\(\medspace = 2^{2} \)

Related subgroups

Centralizer:$C_5\times C_{80}$
Normalizer:$C_{16}.C_{10}^2$
Complements:$C_5\times C_{10}$
Minimal over-subgroups:$C_5\times \OD_{32}$$\OD_{32}:C_2$
Maximal under-subgroups:$C_2\times C_8$$C_{16}$

Other information

Number of subgroups in this autjugacy class$3$
Number of conjugacy classes in this autjugacy class$3$
Möbius function$-5$
Projective image$C_2\times C_{10}^2$