Galois group: 9T5

• Label: 9T5
• Degree: $9$
• Order: $18$
• Cyclic: no
• Abelian: no
• Solvable: yes
• Primitive: no
• $p$-group: no
• Group: $C_3^2:C_2$

Group action invariants

Degree $n$:		$9$
Transitive number $t$:		$5$
Group:		$C_3^2:C_2$
CHM label:		$S(3)[1/2]S(3)=3^{2}:2$
Parity:		$1$
Primitive:		no
$\card{\Aut(F/K)}$:		$1$
Generators:		(1,2,9)(3,4,5)(6,7,8), (1,2)(3,6)(4,8)(5,7), (1,4,7)(2,5,8)(3,6,9)

Low degree resolvents

|G/N|	Galois groups for stem field(s)
$2$:	$C_2$
$6$:	$S_3$ x 4

Resolvents shown for degrees $\leq 47$

Subfields

Degree 3: $S_3$ x 4

Low degree siblings

18T4

Siblings are shown with degree $\leq 47$

A number field with this Galois group has no arithmetically equivalent fields.

Conjugacy classes

Label	Cycle Type	Size	Order	Representative
	$ 1, 1, 1, 1, 1, 1, 1, 1, 1 $	$1$	$1$	$()$
	$ 2, 2, 2, 2, 1 $	$9$	$2$	$(2,9)(3,8)(4,7)(5,6)$
	$ 3, 3, 3 $	$2$	$3$	$(1,2,9)(3,4,5)(6,7,8)$
	$ 3, 3, 3 $	$2$	$3$	$(1,3,8)(2,4,6)(5,7,9)$
	$ 3, 3, 3 $	$2$	$3$	$(1,4,7)(2,5,8)(3,6,9)$
	$ 3, 3, 3 $	$2$	$3$	$(1,5,6)(2,3,7)(4,8,9)$

Group invariants

Order:		$18=2 \cdot 3^{2}$
Cyclic:		no
Abelian:		no
Solvable:		yes
Nilpotency class:		not nilpotent
Label:		18.4
Character table:

		1A	2A	3A	3B	3C	3D
	Size	1	9	2	2	2	2
	2 P	1A	1A	3C	3A	3B	3D
	3 P	1A	2A	1A	1A	1A	1A
	Type
18.4.1a	R	$1$	$1$	$1$	$1$	$1$	$1$
18.4.1b	R	$1$	$-1$	$1$	$1$	$1$	$1$
18.4.2a	R	$2$	$0$	$-1$	$-1$	$-1$	$2$
18.4.2b	R	$2$	$0$	$-1$	$-1$	$2$	$-1$
18.4.2c	R	$2$	$0$	$-1$	$2$	$-1$	$-1$
18.4.2d	R	$2$	$0$	$2$	$-1$	$-1$	$-1$