Properties

Label 1344.9757.4.a1.a1
Order $ 2^{4} \cdot 3 \cdot 7 $
Index $ 2^{2} $
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Subgroup ($H$) information

Description:$D_{12}:C_{14}$
Order: \(336\)\(\medspace = 2^{4} \cdot 3 \cdot 7 \)
Index: \(4\)\(\medspace = 2^{2} \)
Exponent: \(84\)\(\medspace = 2^{2} \cdot 3 \cdot 7 \)
Generators: $bc, d^{28}, d^{21}, d^{12}, c^{2}d^{42}, d^{42}$ Copy content Toggle raw display
Derived length: $2$

The subgroup is characteristic (hence normal), nonabelian, supersolvable (hence solvable and monomial), hyperelementary for $p = 2$, and metabelian.

Ambient group ($G$) information

Description: $C_{84}.C_2^4$
Order: \(1344\)\(\medspace = 2^{6} \cdot 3 \cdot 7 \)
Exponent: \(168\)\(\medspace = 2^{3} \cdot 3 \cdot 7 \)
Derived length:$2$

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

Quotient group ($Q$) structure

Description: $C_2^2$
Order: \(4\)\(\medspace = 2^{2} \)
Exponent: \(2\)
Automorphism Group: $S_3$, of order \(6\)\(\medspace = 2 \cdot 3 \)
Outer Automorphisms: $S_3$, of order \(6\)\(\medspace = 2 \cdot 3 \)
Derived length: $1$

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

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_{42}.(C_2^5\times C_6).C_2^2$
$\operatorname{Aut}(H)$ $C_6^2:C_2^4$, of order \(576\)\(\medspace = 2^{6} \cdot 3^{2} \)
$\card{W}$\(48\)\(\medspace = 2^{4} \cdot 3 \)

Related subgroups

Centralizer:$C_{28}$
Normalizer:$C_{84}.C_2^4$
Minimal over-subgroups:$D_{12}.D_{14}$$C_{84}.D_4$$C_{84}.D_4$
Maximal under-subgroups:$C_2\times C_{84}$$C_7\times D_{12}$$C_{21}:Q_8$$D_6:C_{14}$$S_3\times C_{28}$$D_4:C_{14}$$D_{12}:C_2$

Other information

Möbius function not computed
Projective image not computed