Properties

Label 972.713.6.a1
Order $ 2 \cdot 3^{4} $
Index $ 2 \cdot 3 $
Normal Yes

Downloads

Learn more

Subgroup ($H$) information

Description:$C_6\times \He_3$
Order: \(162\)\(\medspace = 2 \cdot 3^{4} \)
Index: \(6\)\(\medspace = 2 \cdot 3 \)
Exponent: \(6\)\(\medspace = 2 \cdot 3 \)
Generators: $d^{9}, d^{6}, a, bc^{2}d^{8}, c^{2}d^{6}$ Copy content Toggle raw display
Nilpotency class: $2$
Derived length: $2$

The subgroup is normal, a semidirect factor, nonabelian, elementary for $p = 3$ (hence nilpotent, solvable, supersolvable, monomial, and hyperelementary), and metabelian.

Ambient group ($G$) information

Description: $\He_3:C_6^2$
Order: \(972\)\(\medspace = 2^{2} \cdot 3^{5} \)
Exponent: \(18\)\(\medspace = 2 \cdot 3^{2} \)
Nilpotency class:$3$
Derived length:$2$

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

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 \(2\)
Nilpotency class: $1$
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

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_3^4.C_3^4.C_2^3$, of order \(314928\)\(\medspace = 2^{4} \cdot 3^{9} \)
$\operatorname{Aut}(H)$ $C_3^4:(S_3\times \GL(2,3))$, of order \(23328\)\(\medspace = 2^{5} \cdot 3^{6} \)
$\operatorname{res}(S)$$C_3^2.S_3^3$, of order \(1944\)\(\medspace = 2^{3} \cdot 3^{5} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(18\)\(\medspace = 2 \cdot 3^{2} \)
$W$$\He_3$, of order \(27\)\(\medspace = 3^{3} \)

Related subgroups

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

Other information

Number of subgroups in this autjugacy class$9$
Number of conjugacy classes in this autjugacy class$9$
Möbius function$1$
Projective image$C_2\times \He_3$