Properties

Label 729.494.3.f1
Order $ 3^{5} $
Index $ 3 $
Normal Yes

Downloads

Learn more

Subgroup ($H$) information

Description:$C_3^2.C_3^3$
Order: \(243\)\(\medspace = 3^{5} \)
Index: \(3\)
Exponent: \(9\)\(\medspace = 3^{2} \)
Generators: $ab, be, c$ Copy content Toggle raw display
Nilpotency class: $3$
Derived length: $2$

The subgroup is normal, maximal, a semidirect factor, nonabelian, a $p$-group (hence nilpotent, solvable, supersolvable, monomial, elementary, and hyperelementary), and metabelian.

Ambient group ($G$) information

Description: $C_3^2.C_3^4$
Order: \(729\)\(\medspace = 3^{6} \)
Exponent: \(9\)\(\medspace = 3^{2} \)
Nilpotency class:$3$
Derived length:$2$

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

Quotient group ($Q$) structure

Description: $C_3$
Order: \(3\)
Exponent: \(3\)
Automorphism Group: $C_2$, of order \(2\)
Outer Automorphisms: $C_2$, of order \(2\)
Nilpotency class: $1$
Derived length: $1$

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

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\times C_3^4.\He_3.D_6$, of order \(78732\)\(\medspace = 2^{2} \cdot 3^{9} \)
$\operatorname{Aut}(H)$ $C_3^2.C_3^5:C_6$, of order \(13122\)\(\medspace = 2 \cdot 3^{8} \)
$\operatorname{res}(S)$$C_3^2.C_3^5:C_6$, of order \(13122\)\(\medspace = 2 \cdot 3^{8} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(3\)
$W$$C_3^2\times \He_3$, of order \(243\)\(\medspace = 3^{5} \)

Related subgroups

Centralizer:$C_3$
Normalizer:$C_3^2.C_3^4$
Complements:$C_3$ $C_3$ $C_3$
Minimal over-subgroups:$C_3^2.C_3^4$
Maximal under-subgroups:$C_9:C_3^2$$C_9:C_3^2$$C_3.\He_3$

Other information

Number of subgroups in this autjugacy class$2$
Number of conjugacy classes in this autjugacy class$2$
Möbius function$-1$
Projective image$C_3^2\times \He_3$