Properties

Label 18T37
18T37 1 6 1->6 1->6 16 1->16 2 5 2->5 2->5 15 2->15 3 3->2 4 3->4 13 3->13 4->1 14 4->14 5->4 18 5->18 6->3 17 6->17 7 11 7->11 12 7->12 7->16 8 8->11 8->12 8->15 9 9->7 9->14 10 10->8 10->13 11->9 11->18 12->10 12->17 13->9 13->18 14->10 14->17 15->7 15->14 16->8 16->13 17->11 17->15 18->12 18->16
Degree $18$
Order $72$
Cyclic no
Abelian no
Solvable yes
Primitive no
$p$-group no
Group: $C_3:S_4$

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Show commands: Magma

Copy content magma:G := TransitiveGroup(18, 37);
 

Group invariants

Abstract group:  $C_3:S_4$
Copy content magma:IdentifyGroup(G);
 
Order:  $72=2^{3} \cdot 3^{2}$
Copy content magma:Order(G);
 
Cyclic:  no
Copy content magma:IsCyclic(G);
 
Abelian:  no
Copy content magma:IsAbelian(G);
 
Solvable:  yes
Copy content magma:IsSolvable(G);
 
Nilpotency class:   not nilpotent
Copy content magma:NilpotencyClass(G);
 

Group action invariants

Degree $n$:  $18$
Copy content magma:t, n := TransitiveGroupIdentification(G); n;
 
Transitive number $t$:  $37$
Copy content magma:t, n := TransitiveGroupIdentification(G); t;
 
Parity:  $1$
Copy content magma:IsEven(G);
 
Primitive:  no
Copy content magma:IsPrimitive(G);
 
$\card{\Aut(F/K)}$:  $2$
Copy content magma:Order(Centralizer(SymmetricGroup(n), G));
 
Generators:  $(1,6,3,2,5,4)(7,12,10,8,11,9)(13,18,16)(14,17,15)$, $(1,6)(2,5)(3,4)(7,16,8,15)(9,14,10,13)(11,18,12,17)$, $(1,16)(2,15)(3,13)(4,14)(5,18)(6,17)(7,11)(8,12)$
Copy content magma:Generators(G);
 

Low degree resolvents

$\card{(G/N)}$Galois groups for stem field(s)
$2$:  $C_2$
$6$:  $S_3$ x 4
$18$:  $C_3^2:C_2$
$24$:  $S_4$

Resolvents shown for degrees $\leq 47$

Subfields

Degree 2: None

Degree 3: $S_3$ x 4

Degree 6: $S_4$

Degree 9: $C_3^2:C_2$

Low degree siblings

12T44 x 3, 18T40, 24T79 x 3, 36T23, 36T56

Siblings are shown with degree $\leq 47$

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

Conjugacy classes

LabelCycle TypeSizeOrderIndexRepresentative
1A $1^{18}$ $1$ $1$ $0$ $()$
2A $2^{6},1^{6}$ $3$ $2$ $6$ $( 7, 8)( 9,10)(11,12)(13,14)(15,16)(17,18)$
2B $2^{8},1^{2}$ $18$ $2$ $8$ $( 1, 5)( 2, 6)( 7,16)( 8,15)( 9,14)(10,13)(11,18)(12,17)$
3A $3^{6}$ $2$ $3$ $12$ $( 1, 5, 3)( 2, 6, 4)( 7,11,10)( 8,12, 9)(13,18,16)(14,17,15)$
3B $3^{6}$ $8$ $3$ $12$ $( 1,14,11)( 2,13,12)( 3,15, 7)( 4,16, 8)( 5,17,10)( 6,18, 9)$
3C $3^{6}$ $8$ $3$ $12$ $( 1,15,10)( 2,16, 9)( 3,17,11)( 4,18,12)( 5,14, 7)( 6,13, 8)$
3D $3^{6}$ $8$ $3$ $12$ $( 1,17, 7)( 2,18, 8)( 3,14,10)( 4,13, 9)( 5,15,11)( 6,16,12)$
4A $4^{3},2^{3}$ $18$ $4$ $12$ $( 1, 4)( 2, 3)( 5, 6)( 7,13, 8,14)( 9,17,10,18)(11,16,12,15)$
6A $6^{2},3^{2}$ $6$ $6$ $14$ $( 1, 3, 5)( 2, 4, 6)( 7, 9,11, 8,10,12)(13,15,18,14,16,17)$

Malle's constant $a(G)$:     $1/6$

Copy content magma:ConjugacyClasses(G);
 

Character table

1A 2A 2B 3A 3B 3C 3D 4A 6A
Size 1 3 18 2 8 8 8 18 6
2 P 1A 1A 1A 3A 3B 3C 3D 2A 3A
3 P 1A 2A 2B 1A 1A 1A 1A 4A 2A
Type
72.43.1a R 1 1 1 1 1 1 1 1 1
72.43.1b R 1 1 1 1 1 1 1 1 1
72.43.2a R 2 2 0 1 1 1 2 0 1
72.43.2b R 2 2 0 1 1 2 1 0 1
72.43.2c R 2 2 0 1 2 1 1 0 1
72.43.2d R 2 2 0 2 1 1 1 0 2
72.43.3a R 3 1 1 3 0 0 0 1 1
72.43.3b R 3 1 1 3 0 0 0 1 1
72.43.6a R 6 2 0 3 0 0 0 0 1

Copy content magma:CharacterTable(G);
 

Regular extensions

Data not computed