Properties

Label 1728.31928.6.e1.a1
Order $ 2^{5} \cdot 3^{2} $
Index $ 2 \cdot 3 $
Normal Yes

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Subgroup ($H$) information

Description:$C_{12}.S_4$
Order: \(288\)\(\medspace = 2^{5} \cdot 3^{2} \)
Index: \(6\)\(\medspace = 2 \cdot 3 \)
Exponent: \(24\)\(\medspace = 2^{3} \cdot 3 \)
Generators: $\left(\begin{array}{rr} 35 & 24 \\ 9 & 73 \end{array}\right), \left(\begin{array}{rr} 43 & 0 \\ 42 & 43 \end{array}\right), \left(\begin{array}{rr} 1 & 28 \\ 0 & 1 \end{array}\right), \left(\begin{array}{rr} 13 & 72 \\ 48 & 1 \end{array}\right), \left(\begin{array}{rr} 43 & 42 \\ 0 & 43 \end{array}\right), \left(\begin{array}{rr} 13 & 0 \\ 0 & 13 \end{array}\right), \left(\begin{array}{rr} 22 & 21 \\ 21 & 1 \end{array}\right)$ Copy content Toggle raw display
Derived length: $3$

The subgroup is characteristic (hence normal), nonabelian, and monomial (hence solvable).

Ambient group ($G$) information

Description: $C_3\times C_6.\GL(2,\mathbb{Z}/4)$
Order: \(1728\)\(\medspace = 2^{6} \cdot 3^{3} \)
Exponent: \(24\)\(\medspace = 2^{3} \cdot 3 \)
Derived length:$3$

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

Quotient group ($Q$) structure

Description: $C_6$
Order: \(6\)\(\medspace = 2 \cdot 3 \)
Exponent: \(6\)\(\medspace = 2 \cdot 3 \)
Automorphism Group: $C_2$, of order \(2\)
Outer Automorphisms: $C_2$, of order \(2\)
Derived length: $1$

The quotient is cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary ($p = 2,3$), hyperelementary, metacyclic, metabelian, a Z-group, and an A-group).

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_2^5.D_6^2$, of order \(4608\)\(\medspace = 2^{9} \cdot 3^{2} \)
$\operatorname{Aut}(H)$ $C_2^2\times C_6^2:D_6$, of order \(1728\)\(\medspace = 2^{6} \cdot 3^{3} \)
$\operatorname{res}(\operatorname{Aut}(G))$$C_2^2:D_6^2$, of order \(576\)\(\medspace = 2^{6} \cdot 3^{2} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(8\)\(\medspace = 2^{3} \)
$W$$S_3\times S_4$, of order \(144\)\(\medspace = 2^{4} \cdot 3^{2} \)

Related subgroups

Centralizer:$C_{12}$
Normalizer:$C_3\times C_6.\GL(2,\mathbb{Z}/4)$
Minimal over-subgroups:$C_3\times C_{12}.S_4$$C_6.\GL(2,\mathbb{Z}/4)$
Maximal under-subgroups:$C_{12}\times A_4$$C_{12}.D_4$$A_4:C_8$$A_4:C_8$$C_3^2:C_8$

Other information

Möbius function$1$
Projective image$C_3^2:\GL(2,\mathbb{Z}/4)$