Properties

Label 972.795.18.a1
Order $ 2 \cdot 3^{3} $
Index $ 2 \cdot 3^{2} $
Normal Yes

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Subgroup ($H$) information

Description:$S_3\times C_3^2$
Order: \(54\)\(\medspace = 2 \cdot 3^{3} \)
Index: \(18\)\(\medspace = 2 \cdot 3^{2} \)
Exponent: \(6\)\(\medspace = 2 \cdot 3 \)
Generators: $c^{3}, b, e^{3}, d$ Copy content Toggle raw display
Derived length: $2$

The subgroup is normal, nonabelian, supersolvable (hence solvable and monomial), metabelian, and an A-group.

Ambient group ($G$) information

Description: $(C_3\times C_9):S_3^2$
Order: \(972\)\(\medspace = 2^{2} \cdot 3^{5} \)
Exponent: \(18\)\(\medspace = 2 \cdot 3^{2} \)
Derived length:$3$

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

Quotient group ($Q$) structure

Description: $C_3\times S_3$
Order: \(18\)\(\medspace = 2 \cdot 3^{2} \)
Exponent: \(6\)\(\medspace = 2 \cdot 3 \)
Automorphism Group: $D_6$, of order \(12\)\(\medspace = 2^{2} \cdot 3 \)
Outer Automorphisms: $C_2$, of order \(2\)
Derived length: $2$

The quotient is nonabelian, metacyclic (hence solvable, supersolvable, monomial, and metabelian), and an A-group.

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)$$S_3\times C_3^3:\GL(2,3)$, of order \(7776\)\(\medspace = 2^{5} \cdot 3^{5} \)
$\operatorname{Aut}(H)$ $S_3\times \GL(2,3)$, of order \(288\)\(\medspace = 2^{5} \cdot 3^{2} \)
$\operatorname{res}(S)$$S_3\times D_6$, of order \(72\)\(\medspace = 2^{3} \cdot 3^{2} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(27\)\(\medspace = 3^{3} \)
$W$$S_3^2$, of order \(36\)\(\medspace = 2^{2} \cdot 3^{2} \)

Related subgroups

Centralizer:$C_3\times C_9$
Normalizer:$(C_3\times C_9):S_3^2$
Minimal over-subgroups:$C_3^2:C_{18}$$S_3\times \He_3$$C_3^3.C_6$$C_3\times S_3^2$
Maximal under-subgroups:$C_3^3$$C_3\times S_3$$C_3\times C_6$$C_3\times S_3$

Other information

Number of subgroups in this autjugacy class$4$
Number of conjugacy classes in this autjugacy class$4$
Möbius function$-3$
Projective image$C_3^2:S_3^2$