Properties

Label 1458.122.9.a1
Order $ 2 \cdot 3^{4} $
Index $ 3^{2} $
Normal Yes

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Subgroup ($H$) information

Description:$C_3^3\times C_6$
Order: \(162\)\(\medspace = 2 \cdot 3^{4} \)
Index: \(9\)\(\medspace = 3^{2} \)
Exponent: \(6\)\(\medspace = 2 \cdot 3 \)
Generators: $f^{3}, f^{2}, b, d, ef^{2}$ Copy content Toggle raw display
Nilpotency class: $1$
Derived length: $1$

The subgroup is normal, abelian (hence nilpotent, solvable, supersolvable, monomial, metabelian, and an A-group), and elementary for $p = 3$ (hence hyperelementary).

Ambient group ($G$) information

Description: $C_2\times C_3^3:\He_3$
Order: \(1458\)\(\medspace = 2 \cdot 3^{6} \)
Exponent: \(6\)\(\medspace = 2 \cdot 3 \)
Nilpotency class:$2$
Derived length:$2$

The ambient group is nonabelian, elementary for $p = 3$ (hence nilpotent, solvable, supersolvable, monomial, and hyperelementary), and metabelian.

Quotient group ($Q$) structure

Description: $C_3^2$
Order: \(9\)\(\medspace = 3^{2} \)
Exponent: \(3\)
Automorphism Group: $\GL(2,3)$, of order \(48\)\(\medspace = 2^{4} \cdot 3 \)
Outer Automorphisms: $\GL(2,3)$, of order \(48\)\(\medspace = 2^{4} \cdot 3 \)
Nilpotency class: $1$
Derived length: $1$

The quotient is abelian (hence nilpotent, solvable, supersolvable, monomial, metabelian, and an A-group), a $p$-group (hence elementary and 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_3^9.C_2.\SL(3,3)$, of order \(221079456\)\(\medspace = 2^{5} \cdot 3^{12} \cdot 13 \)
$\operatorname{Aut}(H)$ $C_2.\PSL(4,3).C_2$, of order \(24261120\)\(\medspace = 2^{9} \cdot 3^{6} \cdot 5 \cdot 13 \)
$\operatorname{res}(S)$$C_3^4:(S_3\times \GL(2,3))$, of order \(23328\)\(\medspace = 2^{5} \cdot 3^{6} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(729\)\(\medspace = 3^{6} \)
$W$$C_3^2$, of order \(9\)\(\medspace = 3^{2} \)

Related subgroups

Centralizer:$C_3^3\times C_6$
Normalizer:$C_2\times C_3^3:\He_3$
Minimal over-subgroups:$C_3^4:C_6$
Maximal under-subgroups:$C_3^4$$C_3^2\times C_6$$C_3^2\times C_6$$C_3^2\times C_6$

Other information

Number of subgroups in this autjugacy class$13$
Number of conjugacy classes in this autjugacy class$13$
Möbius function$3$
Projective image$C_3^3$