Properties

Label 1944.3557.36.a1.a1
Order $ 2 \cdot 3^{3} $
Index $ 2^{2} \cdot 3^{2} $
Normal Yes

Downloads

Learn more

Subgroup ($H$) information

Description:$C_3^2:S_3$
Order: \(54\)\(\medspace = 2 \cdot 3^{3} \)
Index: \(36\)\(\medspace = 2^{2} \cdot 3^{2} \)
Exponent: \(6\)\(\medspace = 2 \cdot 3 \)
Generators: $b^{6}, df, ef, f$ Copy content Toggle raw display
Derived length: $3$

The subgroup is characteristic (hence normal), nonabelian, and supersolvable (hence solvable and monomial).

Ambient group ($G$) information

Description: $C_3^2:\SU(3,2)$
Order: \(1944\)\(\medspace = 2^{3} \cdot 3^{5} \)
Exponent: \(12\)\(\medspace = 2^{2} \cdot 3 \)
Derived length:$4$

The ambient group is nonabelian and solvable.

Quotient group ($Q$) structure

Description: $S_3^2$
Order: \(36\)\(\medspace = 2^{2} \cdot 3^{2} \)
Exponent: \(6\)\(\medspace = 2 \cdot 3 \)
Automorphism Group: $\SOPlus(4,2)$, of order \(72\)\(\medspace = 2^{3} \cdot 3^{2} \)
Outer Automorphisms: $C_2$, of order \(2\)
Derived length: $2$

The quotient is nonabelian, supersolvable (hence solvable and monomial), metabelian, an A-group, 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_3^2\times S_3^2):\SD_{16}$, of order \(5184\)\(\medspace = 2^{6} \cdot 3^{4} \)
$\operatorname{Aut}(H)$ $C_3^2:\GL(2,3)$, of order \(432\)\(\medspace = 2^{4} \cdot 3^{3} \)
$\operatorname{res}(\operatorname{Aut}(G))$$F_9:C_2$, of order \(144\)\(\medspace = 2^{4} \cdot 3^{2} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(36\)\(\medspace = 2^{2} \cdot 3^{2} \)
$W$$\PSU(3,2)$, of order \(72\)\(\medspace = 2^{3} \cdot 3^{2} \)

Related subgroups

Centralizer:$C_3^3$
Normalizer:$C_3^2:\SU(3,2)$
Minimal over-subgroups:$C_3^3:S_3$$C_3^3:S_3$$C_3^3:S_3$$\He_3:C_4$$\He_3:C_4$$\He_3:C_4$
Maximal under-subgroups:$\He_3$$C_3\times S_3$

Other information

Möbius function$18$
Projective image$C_3^4:Q_8$