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Magma
magma: G := TransitiveGroup(18, 23);
Group action invariants
Degree $n$: | $18$ | magma: t, n := TransitiveGroupIdentification(G); n;
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Transitive number $t$: | $23$ | magma: t, n := TransitiveGroupIdentification(G); t;
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Group: | $C_3^2:C_6$ | ||
Parity: | $-1$ | magma: IsEven(G);
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Primitive: | no | magma: IsPrimitive(G);
| magma: NilpotencyClass(G);
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$\card{\Aut(F/K)}$: | $9$ | magma: Order(Centralizer(SymmetricGroup(n), G));
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Generators: | (1,18,7,6,14,10)(2,17,8,5,15,12)(3,16,9,4,13,11), (1,8,13)(2,9,14)(3,7,15)(4,5,6)(10,11,12)(16,17,18), (1,9,15)(2,7,13)(3,8,14)(4,6,5)(10,12,11)(16,18,17) | magma: Generators(G);
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Low degree resolvents
|G/N| Galois groups for stem field(s) $2$: $C_2$ $3$: $C_3$ $6$: $S_3$ x 4, $C_6$ $18$: $S_3\times C_3$ x 4, $C_3^2:C_2$ Resolvents shown for degrees $\leq 47$
Subfields
Degree 2: $C_2$
Degree 3: $S_3$
Degree 6: $S_3$, $S_3\times C_3$ x 3
Degree 9: None
Low degree siblings
18T23 x 3, 27T13Siblings 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, 1, 1, 1, 1, 1, 1, 1 $ | $1$ | $1$ | $()$ | |
$ 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1 $ | $2$ | $3$ | $( 4,11,16)( 5,12,17)( 6,10,18)$ | |
$ 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1 $ | $2$ | $3$ | $( 4,16,11)( 5,17,12)( 6,18,10)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1, 2, 3)( 4, 5, 6)( 7, 8, 9)(10,11,12)(13,14,15)(16,17,18)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1, 2, 3)( 4,12,18)( 5,10,16)( 6,11,17)( 7, 8, 9)(13,14,15)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1, 2, 3)( 4,17,10)( 5,18,11)( 6,16,12)( 7, 8, 9)(13,14,15)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1, 3, 2)( 4,10,17)( 5,11,18)( 6,12,16)( 7, 9, 8)(13,15,14)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1, 3, 2)( 4,18,12)( 5,16,10)( 6,17,11)( 7, 9, 8)(13,15,14)$ | |
$ 2, 2, 2, 2, 2, 2, 2, 2, 2 $ | $9$ | $2$ | $( 1, 4)( 2, 6)( 3, 5)( 7,11)( 8,10)( 9,12)(13,17)(14,16)(15,18)$ | |
$ 6, 6, 6 $ | $9$ | $6$ | $( 1, 4, 7,11,14,16)( 2, 6, 8,10,15,18)( 3, 5, 9,12,13,17)$ | |
$ 6, 6, 6 $ | $9$ | $6$ | $( 1, 4,14,16, 7,11)( 2, 6,15,18, 8,10)( 3, 5,13,17, 9,12)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $1$ | $3$ | $( 1, 7,14)( 2, 8,15)( 3, 9,13)( 4,11,16)( 5,12,17)( 6,10,18)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1, 7,14)( 2, 8,15)( 3, 9,13)( 4,16,11)( 5,17,12)( 6,18,10)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1, 8,13)( 2, 9,14)( 3, 7,15)( 4,12,18)( 5,10,16)( 6,11,17)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1, 8,13)( 2, 9,14)( 3, 7,15)( 4,17,10)( 5,18,11)( 6,16,12)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1, 9,15)( 2, 7,13)( 3, 8,14)( 4,18,12)( 5,16,10)( 6,17,11)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1,13, 8)( 2,14, 9)( 3,15, 7)( 4,18,12)( 5,16,10)( 6,17,11)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $1$ | $3$ | $( 1,14, 7)( 2,15, 8)( 3,13, 9)( 4,16,11)( 5,17,12)( 6,18,10)$ |
magma: ConjugacyClasses(G);
Group invariants
Order: | $54=2 \cdot 3^{3}$ | magma: Order(G);
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Cyclic: | no | magma: IsCyclic(G);
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Abelian: | no | magma: IsAbelian(G);
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Solvable: | yes | magma: IsSolvable(G);
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Nilpotency class: | not nilpotent | ||
Label: | 54.13 | magma: IdentifyGroup(G);
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Character table: |
1A | 2A | 3A1 | 3A-1 | 3B | 3C | 3D | 3E | 3F1 | 3F-1 | 3G1 | 3G-1 | 3H1 | 3H-1 | 3I1 | 3I-1 | 6A1 | 6A-1 | ||
Size | 1 | 9 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 9 | 9 | |
2 P | 1A | 1A | 3A-1 | 3A1 | 3H-1 | 3F-1 | 3I-1 | 3I1 | 3B | 3H1 | 3E | 3F1 | 3D | 3G-1 | 3C | 3G1 | 3A1 | 3A-1 | |
3 P | 1A | 2A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 2A | 2A | |
Type | |||||||||||||||||||
54.13.1a | R | ||||||||||||||||||
54.13.1b | R | ||||||||||||||||||
54.13.1c1 | C | ||||||||||||||||||
54.13.1c2 | C | ||||||||||||||||||
54.13.1d1 | C | ||||||||||||||||||
54.13.1d2 | C | ||||||||||||||||||
54.13.2a | R | ||||||||||||||||||
54.13.2b | R | ||||||||||||||||||
54.13.2c | R | ||||||||||||||||||
54.13.2d | R | ||||||||||||||||||
54.13.2e1 | C | ||||||||||||||||||
54.13.2e2 | C | ||||||||||||||||||
54.13.2f1 | C | ||||||||||||||||||
54.13.2f2 | C | ||||||||||||||||||
54.13.2g1 | C | ||||||||||||||||||
54.13.2g2 | C | ||||||||||||||||||
54.13.2h1 | C | ||||||||||||||||||
54.13.2h2 | C |
magma: CharacterTable(G);