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Magma
magma: G := TransitiveGroup(18, 45);
Group action invariants
Degree $n$: | $18$ | magma: t, n := TransitiveGroupIdentification(G); n;
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Transitive number $t$: | $45$ | magma: t, n := TransitiveGroupIdentification(G); t;
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Group: | $C_{18}:C_6$ | ||
Parity: | $-1$ | magma: IsEven(G);
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Primitive: | no | magma: IsPrimitive(G);
| magma: NilpotencyClass(G);
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$\card{\Aut(F/K)}$: | $2$ | magma: Order(Centralizer(SymmetricGroup(n), G));
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Generators: | (3,6,10,17,15,12)(4,5,9,18,16,11)(7,13)(8,14), (1,18,14,5,8,11)(2,17,13,6,7,12)(3,4)(9,15)(10,16) | magma: Generators(G);
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Low degree resolvents
|G/N| Galois groups for stem field(s) $2$: $C_2$ x 3 $3$: $C_3$ $4$: $C_2^2$ $6$: $S_3$, $C_6$ x 3 $12$: $D_{6}$, $C_6\times C_2$ $18$: $S_3\times C_3$ $36$: $C_6\times S_3$ $54$: $(C_9:C_3):C_2$ Resolvents shown for degrees $\leq 47$
Subfields
Degree 2: $C_2$
Degree 3: $S_3$
Degree 6: $D_{6}$
Degree 9: $(C_9:C_3):C_2$
Low degree siblings
18T45, 36T67Siblings 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 $ | $1$ | $1$ | $()$ | |
$ 6, 6, 2, 2, 1, 1 $ | $9$ | $6$ | $( 3, 6,10,17,15,12)( 4, 5, 9,18,16,11)( 7,13)( 8,14)$ | |
$ 3, 3, 3, 3, 1, 1, 1, 1, 1, 1 $ | $3$ | $3$ | $( 3,10,15)( 4, 9,16)( 5,18,11)( 6,17,12)$ | |
$ 6, 6, 2, 2, 1, 1 $ | $9$ | $6$ | $( 3,12,15,17,10, 6)( 4,11,16,18, 9, 5)( 7,13)( 8,14)$ | |
$ 3, 3, 3, 3, 1, 1, 1, 1, 1, 1 $ | $3$ | $3$ | $( 3,15,10)( 4,16, 9)( 5,11,18)( 6,12,17)$ | |
$ 2, 2, 2, 2, 2, 2, 2, 2, 1, 1 $ | $9$ | $2$ | $( 3,17)( 4,18)( 5,16)( 6,15)( 7,13)( 8,14)( 9,11)(10,12)$ | |
$ 2, 2, 2, 2, 2, 2, 2, 2, 2 $ | $1$ | $2$ | $( 1, 2)( 3, 4)( 5, 6)( 7, 8)( 9,10)(11,12)(13,14)(15,16)(17,18)$ | |
$ 6, 6, 2, 2, 2 $ | $9$ | $6$ | $( 1, 2)( 3, 5,10,18,15,11)( 4, 6, 9,17,16,12)( 7,14)( 8,13)$ | |
$ 6, 6, 2, 2, 2 $ | $3$ | $6$ | $( 1, 2)( 3, 9,15, 4,10,16)( 5,17,11, 6,18,12)( 7, 8)(13,14)$ | |
$ 6, 6, 2, 2, 2 $ | $9$ | $6$ | $( 1, 2)( 3,11,15,18,10, 5)( 4,12,16,17, 9, 6)( 7,14)( 8,13)$ | |
$ 6, 6, 2, 2, 2 $ | $3$ | $6$ | $( 1, 2)( 3,16,10, 4,15, 9)( 5,12,18, 6,11,17)( 7, 8)(13,14)$ | |
$ 2, 2, 2, 2, 2, 2, 2, 2, 2 $ | $9$ | $2$ | $( 1, 2)( 3,18)( 4,17)( 5,15)( 6,16)( 7,14)( 8,13)( 9,12)(10,11)$ | |
$ 9, 9 $ | $6$ | $9$ | $( 1, 3, 6, 8,10,12,14,15,17)( 2, 4, 5, 7, 9,11,13,16,18)$ | |
$ 9, 9 $ | $6$ | $9$ | $( 1, 3,12, 8,10,17,14,15, 6)( 2, 4,11, 7, 9,18,13,16, 5)$ | |
$ 9, 9 $ | $6$ | $9$ | $( 1, 3,17, 8,10, 6,14,15,12)( 2, 4,18, 7, 9, 5,13,16,11)$ | |
$ 18 $ | $6$ | $18$ | $( 1, 4, 6, 7,10,11,14,16,17, 2, 3, 5, 8, 9,12,13,15,18)$ | |
$ 18 $ | $6$ | $18$ | $( 1, 4,12, 7,10,18,14,16, 6, 2, 3,11, 8, 9,17,13,15, 5)$ | |
$ 18 $ | $6$ | $18$ | $( 1, 4,17, 7,10, 5,14,16,12, 2, 3,18, 8, 9, 6,13,15,11)$ | |
$ 6, 6, 6 $ | $2$ | $6$ | $( 1, 7,14, 2, 8,13)( 3, 9,15, 4,10,16)( 5,12,18, 6,11,17)$ | |
$ 3, 3, 3, 3, 3, 3 $ | $2$ | $3$ | $( 1, 8,14)( 2, 7,13)( 3,10,15)( 4, 9,16)( 5,11,18)( 6,12,17)$ |
magma: ConjugacyClasses(G);
Group invariants
Order: | $108=2^{2} \cdot 3^{3}$ | 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: | 108.26 | magma: IdentifyGroup(G);
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Character table: |
1A | 2A | 2B | 2C | 3A | 3B1 | 3B-1 | 6A | 6B1 | 6B-1 | 6C1 | 6C-1 | 6D1 | 6D-1 | 9A | 9B1 | 9B-1 | 18A | 18B1 | 18B-1 | ||
Size | 1 | 1 | 9 | 9 | 2 | 3 | 3 | 2 | 3 | 3 | 9 | 9 | 9 | 9 | 6 | 6 | 6 | 6 | 6 | 6 | |
2 P | 1A | 1A | 1A | 1A | 3A | 3B-1 | 3B1 | 3A | 3B1 | 3B-1 | 3B1 | 3B1 | 3B-1 | 3B-1 | 9B-1 | 9B1 | 9A | 9A | 9B1 | 9B-1 | |
3 P | 1A | 2A | 2B | 2C | 1A | 1A | 1A | 2A | 2A | 2A | 2B | 2C | 2C | 2B | 3A | 3A | 3A | 6A | 6A | 6A | |
Type | |||||||||||||||||||||
108.26.1a | R | ||||||||||||||||||||
108.26.1b | R | ||||||||||||||||||||
108.26.1c | R | ||||||||||||||||||||
108.26.1d | R | ||||||||||||||||||||
108.26.1e1 | C | ||||||||||||||||||||
108.26.1e2 | C | ||||||||||||||||||||
108.26.1f1 | C | ||||||||||||||||||||
108.26.1f2 | C | ||||||||||||||||||||
108.26.1g1 | C | ||||||||||||||||||||
108.26.1g2 | C | ||||||||||||||||||||
108.26.1h1 | C | ||||||||||||||||||||
108.26.1h2 | C | ||||||||||||||||||||
108.26.2a | R | ||||||||||||||||||||
108.26.2b | R | ||||||||||||||||||||
108.26.2c1 | C | ||||||||||||||||||||
108.26.2c2 | C | ||||||||||||||||||||
108.26.2d1 | C | ||||||||||||||||||||
108.26.2d2 | C | ||||||||||||||||||||
108.26.6a | R | ||||||||||||||||||||
108.26.6b | R |
magma: CharacterTable(G);