Group invariants
| Abstract group: | $C_3^2:C_{18}$ |
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| Order: | $162=2 \cdot 3^{4}$ |
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| Cyclic: | no |
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| Abelian: | no |
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| Solvable: | yes |
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| Nilpotency class: | not nilpotent |
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Group action invariants
| Degree $n$: | $27$ |
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| Transitive number $t$: | $47$ |
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| Parity: | $-1$ |
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| Transitivity: | 1 | ||
| Primitive: | no |
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| $\card{\Aut(F/K)}$: | $3$ |
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| Generators: | $(7,10,13)(8,11,14)(9,12,15)(16,23,21)(17,24,19)(18,22,20)$, $(1,8,22,2,9,23,3,7,24)(4,15,16,25,10,19,6,14,18,27,12,21,5,13,17,26,11,20)$ |
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Low degree resolvents
$\card{(G/N)}$ Galois groups for stem field(s) $2$: $C_2$ $3$: $C_3$ $6$: $S_3$, $C_6$ $9$: $C_9$ $18$: $S_3\times C_3$, $C_{18}$ $54$: $C_3^2 : C_6$, $C_9\times S_3$ Resolvents shown for degrees $\leq 47$
Subfields
Degree 3: $C_3$
Degree 9: $C_9$, $C_3^2 : S_3 $
Low degree siblings
18T82Siblings 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 | Index | Representative |
| 1A | $1^{27}$ | $1$ | $1$ | $0$ | $()$ |
| 2A | $2^{9},1^{9}$ | $9$ | $2$ | $9$ | $( 4,27)( 5,25)( 6,26)(10,13)(11,14)(12,15)(16,21)(17,19)(18,20)$ |
| 3A1 | $3^{9}$ | $1$ | $3$ | $18$ | $( 1, 3, 2)( 4, 6, 5)( 7, 9, 8)(10,12,11)(13,15,14)(16,18,17)(19,21,20)(22,24,23)(25,27,26)$ |
| 3A-1 | $3^{9}$ | $1$ | $3$ | $18$ | $( 1, 2, 3)( 4, 5, 6)( 7, 8, 9)(10,11,12)(13,14,15)(16,17,18)(19,20,21)(22,23,24)(25,26,27)$ |
| 3B | $3^{9}$ | $2$ | $3$ | $18$ | $( 1, 6,26)( 2, 4,27)( 3, 5,25)( 7,10,13)( 8,11,14)( 9,12,15)(16,21,23)(17,19,24)(18,20,22)$ |
| 3C1 | $3^{9}$ | $2$ | $3$ | $18$ | $( 1, 5,27)( 2, 6,25)( 3, 4,26)( 7,12,14)( 8,10,15)( 9,11,13)(16,20,24)(17,21,22)(18,19,23)$ |
| 3C-1 | $3^{9}$ | $2$ | $3$ | $18$ | $( 1, 4,25)( 2, 5,26)( 3, 6,27)( 7,11,15)( 8,12,13)( 9,10,14)(16,19,22)(17,20,23)(18,21,24)$ |
| 3D | $3^{6},1^{9}$ | $6$ | $3$ | $12$ | $( 1,26, 6)( 2,27, 4)( 3,25, 5)( 7,10,13)( 8,11,14)( 9,12,15)$ |
| 3E1 | $3^{9}$ | $6$ | $3$ | $18$ | $( 1,25, 4)( 2,26, 5)( 3,27, 6)( 7,12,14)( 8,10,15)( 9,11,13)(16,18,17)(19,21,20)(22,24,23)$ |
| 3E-1 | $3^{9}$ | $6$ | $3$ | $18$ | $( 1,27, 5)( 2,25, 6)( 3,26, 4)( 7,11,15)( 8,12,13)( 9,10,14)(16,17,18)(19,20,21)(22,23,24)$ |
| 6A1 | $6^{3},3^{3}$ | $9$ | $6$ | $21$ | $( 1, 2, 3)( 4,25, 6,27, 5,26)( 7, 8, 9)(10,14,12,13,11,15)(16,19,18,21,17,20)(22,23,24)$ |
| 6A-1 | $6^{3},3^{3}$ | $9$ | $6$ | $21$ | $( 1, 3, 2)( 4,26, 5,27, 6,25)( 7, 9, 8)(10,15,11,13,12,14)(16,20,17,21,18,19)(22,24,23)$ |
| 9A1 | $9^{3}$ | $3$ | $9$ | $24$ | $( 1,22, 9, 3,24, 8, 2,23, 7)( 4,16,10, 6,18,12, 5,17,11)(13,26,20,15,25,19,14,27,21)$ |
| 9A-1 | $9^{3}$ | $3$ | $9$ | $24$ | $( 1, 7,23, 2, 8,24, 3, 9,22)( 4,11,17, 5,12,18, 6,10,16)(13,21,27,14,19,25,15,20,26)$ |
| 9A2 | $9^{3}$ | $3$ | $9$ | $24$ | $( 1, 9,24, 2, 7,22, 3, 8,23)( 4,10,18, 5,11,16, 6,12,17)(13,20,25,14,21,26,15,19,27)$ |
| 9A-2 | $9^{3}$ | $3$ | $9$ | $24$ | $( 1,23, 8, 3,22, 7, 2,24, 9)( 4,17,12, 6,16,11, 5,18,10)(13,27,19,15,26,21,14,25,20)$ |
| 9A4 | $9^{3}$ | $3$ | $9$ | $24$ | $( 1,24, 7, 3,23, 9, 2,22, 8)( 4,18,11, 6,17,10, 5,16,12)(13,25,21,15,27,20,14,26,19)$ |
| 9A-4 | $9^{3}$ | $3$ | $9$ | $24$ | $( 1, 8,22, 2, 9,23, 3, 7,24)( 4,12,16, 5,10,17, 6,11,18)(13,19,26,14,20,27,15,21,25)$ |
| 9B1 | $9^{3}$ | $6$ | $9$ | $24$ | $( 1,22,12, 3,24,11, 2,23,10)( 4,16,13, 6,18,15, 5,17,14)( 7,26,20, 9,25,19, 8,27,21)$ |
| 9B-1 | $9^{3}$ | $6$ | $9$ | $24$ | $( 1,10,16, 2,11,17, 3,12,18)( 4,14,19, 5,15,20, 6,13,21)( 7,23,27, 8,24,25, 9,22,26)$ |
| 9B2 | $9^{3}$ | $6$ | $9$ | $24$ | $( 1,12,17, 2,10,18, 3,11,16)( 4,13,20, 5,14,21, 6,15,19)( 7,22,25, 8,23,26, 9,24,27)$ |
| 9B-2 | $9^{3}$ | $6$ | $9$ | $24$ | $( 1,23,11, 3,22,10, 2,24,12)( 4,17,15, 6,16,14, 5,18,13)( 7,27,19, 9,26,21, 8,25,20)$ |
| 9B4 | $9^{3}$ | $6$ | $9$ | $24$ | $( 1,24,10, 3,23,12, 2,22,11)( 4,18,14, 6,17,13, 5,16,15)( 7,25,21, 9,27,20, 8,26,19)$ |
| 9B-4 | $9^{3}$ | $6$ | $9$ | $24$ | $( 1,11,18, 2,12,16, 3,10,17)( 4,15,21, 5,13,19, 6,14,20)( 7,24,26, 8,22,27, 9,23,25)$ |
| 18A1 | $18,9$ | $9$ | $18$ | $25$ | $( 1, 8,22, 2, 9,23, 3, 7,24)( 4,15,16,25,10,19, 6,14,18,27,12,21, 5,13,17,26,11,20)$ |
| 18A-1 | $18,9$ | $9$ | $18$ | $25$ | $( 1,24, 7, 3,23, 9, 2,22, 8)( 4,20,11,26,17,13, 5,21,12,27,18,14, 6,19,10,25,16,15)$ |
| 18A5 | $18,9$ | $9$ | $18$ | $25$ | $( 1,23, 8, 3,22, 7, 2,24, 9)( 4,19,12,26,16,14, 5,20,10,27,17,15, 6,21,11,25,18,13)$ |
| 18A-5 | $18,9$ | $9$ | $18$ | $25$ | $( 1, 9,24, 2, 7,22, 3, 8,23)( 4,13,18,25,11,21, 6,15,17,27,10,20, 5,14,16,26,12,19)$ |
| 18A7 | $18,9$ | $9$ | $18$ | $25$ | $( 1, 7,23, 2, 8,24, 3, 9,22)( 4,14,17,25,12,20, 6,13,16,27,11,19, 5,15,18,26,10,21)$ |
| 18A-7 | $18,9$ | $9$ | $18$ | $25$ | $( 1,22, 9, 3,24, 8, 2,23, 7)( 4,21,10,26,18,15, 5,19,11,27,16,13, 6,20,12,25,17,14)$ |
Malle's constant $a(G)$: $1/9$
Character table
| 1A | 2A | 3A1 | 3A-1 | 3B | 3C1 | 3C-1 | 3D | 3E1 | 3E-1 | 6A1 | 6A-1 | 9A1 | 9A-1 | 9A2 | 9A-2 | 9A4 | 9A-4 | 9B1 | 9B-1 | 9B2 | 9B-2 | 9B4 | 9B-4 | 18A1 | 18A-1 | 18A5 | 18A-5 | 18A7 | 18A-7 | ||
| Size | 1 | 9 | 1 | 1 | 2 | 2 | 2 | 6 | 6 | 6 | 9 | 9 | 3 | 3 | 3 | 3 | 3 | 3 | 6 | 6 | 6 | 6 | 6 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | |
| 2 P | 1A | 1A | 3A-1 | 3A1 | 3B | 3C-1 | 3C1 | 3D | 3E-1 | 3E1 | 3A1 | 3A-1 | 9A2 | 9A-2 | 9A4 | 9A-4 | 9A-1 | 9A1 | 9B2 | 9B-2 | 9B4 | 9B-4 | 9B-1 | 9B1 | 9A1 | 9A-1 | 9A-4 | 9A4 | 9A-2 | 9A2 | |
| 3 P | 1A | 2A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 2A | 2A | 3A1 | 3A-1 | 3A-1 | 3A1 | 3A1 | 3A-1 | 3A1 | 3A-1 | 3A-1 | 3A1 | 3A1 | 3A-1 | 6A1 | 6A-1 | 6A-1 | 6A1 | 6A1 | 6A-1 | |
| Type | |||||||||||||||||||||||||||||||
| 162.4.1a | R | ||||||||||||||||||||||||||||||
| 162.4.1b | R | ||||||||||||||||||||||||||||||
| 162.4.1c1 | C | ||||||||||||||||||||||||||||||
| 162.4.1c2 | C | ||||||||||||||||||||||||||||||
| 162.4.1d1 | C | ||||||||||||||||||||||||||||||
| 162.4.1d2 | C | ||||||||||||||||||||||||||||||
| 162.4.1e1 | C | ||||||||||||||||||||||||||||||
| 162.4.1e2 | C | ||||||||||||||||||||||||||||||
| 162.4.1e3 | C | ||||||||||||||||||||||||||||||
| 162.4.1e4 | C | ||||||||||||||||||||||||||||||
| 162.4.1e5 | C | ||||||||||||||||||||||||||||||
| 162.4.1e6 | C | ||||||||||||||||||||||||||||||
| 162.4.1f1 | C | ||||||||||||||||||||||||||||||
| 162.4.1f2 | C | ||||||||||||||||||||||||||||||
| 162.4.1f3 | C | ||||||||||||||||||||||||||||||
| 162.4.1f4 | C | ||||||||||||||||||||||||||||||
| 162.4.1f5 | C | ||||||||||||||||||||||||||||||
| 162.4.1f6 | C | ||||||||||||||||||||||||||||||
| 162.4.2a | R | ||||||||||||||||||||||||||||||
| 162.4.2b1 | C | ||||||||||||||||||||||||||||||
| 162.4.2b2 | C | ||||||||||||||||||||||||||||||
| 162.4.2c1 | C | ||||||||||||||||||||||||||||||
| 162.4.2c2 | C | ||||||||||||||||||||||||||||||
| 162.4.2c3 | C | ||||||||||||||||||||||||||||||
| 162.4.2c4 | C | ||||||||||||||||||||||||||||||
| 162.4.2c5 | C | ||||||||||||||||||||||||||||||
| 162.4.2c6 | C | ||||||||||||||||||||||||||||||
| 162.4.6a | R | ||||||||||||||||||||||||||||||
| 162.4.6b1 | C | ||||||||||||||||||||||||||||||
| 162.4.6b2 | C |
Regular extensions
Data not computed