Properties

Label 1824.815.96.a1
Order $ 19 $
Index $ 2^{5} \cdot 3 $
Normal Yes

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Subgroup ($H$) information

Description:$C_{19}$
Order: \(19\)
Index: \(96\)\(\medspace = 2^{5} \cdot 3 \)
Exponent: \(19\)
Generators: $c^{12}$ Copy content Toggle raw display
Nilpotency class: $1$
Derived length: $1$

The subgroup is the commutator subgroup (hence characteristic and normal), a semidirect factor, cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary, hyperelementary, metacyclic, metabelian, a Z-group, and an A-group), a $19$-Sylow subgroup (hence a Hall subgroup), a $p$-group, and simple.

Ambient group ($G$) information

Description: $C_{114}:C_4^2$
Order: \(1824\)\(\medspace = 2^{5} \cdot 3 \cdot 19 \)
Exponent: \(228\)\(\medspace = 2^{2} \cdot 3 \cdot 19 \)
Derived length:$2$

The ambient group is nonabelian, supersolvable (hence solvable and monomial), hyperelementary for $p = 2$, metabelian, and an A-group.

Quotient group ($Q$) structure

Description: $C_2\times C_4\times C_{12}$
Order: \(96\)\(\medspace = 2^{5} \cdot 3 \)
Exponent: \(12\)\(\medspace = 2^{2} \cdot 3 \)
Automorphism Group: $C_2^7:S_4$, of order \(3072\)\(\medspace = 2^{10} \cdot 3 \)
Outer Automorphisms: $C_2^7:S_4$, of order \(3072\)\(\medspace = 2^{10} \cdot 3 \)
Nilpotency class: $1$
Derived length: $1$

The quotient is abelian (hence nilpotent, solvable, supersolvable, monomial, metabelian, and an A-group) and elementary for $p = 2$ (hence hyperelementary).

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_{38}.C_2^5.C_9.C_2^5$
$\operatorname{Aut}(H)$ $C_{18}$, of order \(18\)\(\medspace = 2 \cdot 3^{2} \)
$\operatorname{res}(\operatorname{Aut}(G))$$C_{18}$, of order \(18\)\(\medspace = 2 \cdot 3^{2} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(19456\)\(\medspace = 2^{10} \cdot 19 \)
$W$$C_2$, of order \(2\)

Related subgroups

Centralizer:$C_2^2\times C_{228}$
Normalizer:$C_{114}:C_4^2$
Complements:$C_2\times C_4\times C_{12}$
Minimal over-subgroups:$C_{57}$$C_{38}$$C_{38}$$C_{38}$
Maximal under-subgroups:$C_1$

Other information

Number of conjugacy classes in this autjugacy class$1$
Möbius function$0$
Projective image$C_{114}:C_4^2$