Group invariants
| Abstract group: | $C_2^2:C_{18}$ |
| |
| Order: | $72=2^{3} \cdot 3^{2}$ |
| |
| Cyclic: | no |
| |
| Abelian: | no |
| |
| Solvable: | yes |
| |
| Nilpotency class: | not nilpotent |
|
Group action invariants
| Degree $n$: | $36$ |
| |
| Transitive number $t$: | $30$ |
| |
| Parity: | $1$ |
| |
| Transitivity: | 1 | ||
| Primitive: | no |
| |
| $\card{\Aut(F/K)}$: | $12$ |
| |
| Generators: | $(1,17,27,11,16,34,5,23,31,2,18,28,12,15,33,6,24,32)(3,20,26,10,14,36,7,22,29,4,19,25,9,13,35,8,21,30)$, $(1,16,30,11,23,26,5,18,36,2,15,29,12,24,25,6,17,35)(3,14,32,10,22,27,7,19,34,4,13,31,9,21,28,8,20,33)$ |
|
Low degree resolvents
$\card{(G/N)}$ Galois groups for stem field(s) $2$: $C_2$ $3$: $C_3$ $6$: $C_6$ $9$: $C_9$ $12$: $A_4$ $18$: $C_{18}$ $24$: $A_4\times C_2$ $36$: $C_2^2 : C_9$ Resolvents shown for degrees $\leq 47$
Subfields
Degree 2: None
Degree 3: $C_3$
Degree 4: None
Degree 6: $A_4$, $A_4\times C_2$
Degree 9: $C_9$
Degree 12: $A_4\times C_2$
Degree 18: $C_2^2 : C_9$, 18T26
Low degree siblings
18T26, 36T16Siblings 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 | $1^{36}$ | $1$ | $1$ | $0$ | $()$ |
| 2A | $2^{18}$ | $1$ | $2$ | $18$ | $( 1, 2)( 3, 4)( 5, 6)( 7, 8)( 9,10)(11,12)(13,14)(15,16)(17,18)(19,20)(21,22)(23,24)(25,26)(27,28)(29,30)(31,32)(33,34)(35,36)$ |
| 2B | $2^{18}$ | $3$ | $2$ | $18$ | $( 1, 2)( 3, 4)( 5, 6)( 7, 8)( 9,10)(11,12)(13,15)(14,16)(17,20)(18,19)(21,24)(22,23)(25,27)(26,28)(29,32)(30,31)(33,36)(34,35)$ |
| 2C | $2^{12},1^{12}$ | $3$ | $2$ | $12$ | $(13,16)(14,15)(17,19)(18,20)(21,23)(22,24)(25,28)(26,27)(29,31)(30,32)(33,35)(34,36)$ |
| 3A1 | $3^{12}$ | $1$ | $3$ | $24$ | $( 1,12, 5)( 2,11, 6)( 3, 9, 7)( 4,10, 8)(13,22,20)(14,21,19)(15,23,17)(16,24,18)(25,36,30)(26,35,29)(27,33,31)(28,34,32)$ |
| 3A-1 | $3^{12}$ | $1$ | $3$ | $24$ | $( 1, 5,12)( 2, 6,11)( 3, 7, 9)( 4, 8,10)(13,20,22)(14,19,21)(15,17,23)(16,18,24)(25,30,36)(26,29,35)(27,31,33)(28,32,34)$ |
| 6A1 | $6^{6}$ | $1$ | $6$ | $30$ | $( 1,11, 5, 2,12, 6)( 3,10, 7, 4, 9, 8)(13,21,20,14,22,19)(15,24,17,16,23,18)(25,35,30,26,36,29)(27,34,31,28,33,32)$ |
| 6A-1 | $6^{6}$ | $1$ | $6$ | $30$ | $( 1, 6,12, 2, 5,11)( 3, 8, 9, 4, 7,10)(13,19,22,14,20,21)(15,18,23,16,17,24)(25,29,36,26,30,35)(27,32,33,28,31,34)$ |
| 6B1 | $6^{6}$ | $3$ | $6$ | $30$ | $( 1, 6,12, 2, 5,11)( 3, 8, 9, 4, 7,10)(13,17,22,15,20,23)(14,18,21,16,19,24)(25,31,36,27,30,33)(26,32,35,28,29,34)$ |
| 6B-1 | $6^{6}$ | $3$ | $6$ | $30$ | $( 1,11, 5, 2,12, 6)( 3,10, 7, 4, 9, 8)(13,23,20,15,22,17)(14,24,19,16,21,18)(25,33,30,27,36,31)(26,34,29,28,35,32)$ |
| 6C1 | $6^{4},3^{4}$ | $3$ | $6$ | $28$ | $( 1,12, 5)( 2,11, 6)( 3, 9, 7)( 4,10, 8)(13,24,20,16,22,18)(14,23,19,15,21,17)(25,34,30,28,36,32)(26,33,29,27,35,31)$ |
| 6C-1 | $6^{4},3^{4}$ | $3$ | $6$ | $28$ | $( 1, 5,12)( 2, 6,11)( 3, 7, 9)( 4, 8,10)(13,18,22,16,20,24)(14,17,21,15,19,23)(25,32,36,28,30,34)(26,31,35,27,29,33)$ |
| 9A1 | $9^{4}$ | $4$ | $9$ | $32$ | $( 1,27,16, 5,31,18,12,33,24)( 2,28,15, 6,32,17,11,34,23)( 3,26,14, 7,29,19, 9,35,21)( 4,25,13, 8,30,20,10,36,22)$ |
| 9A-1 | $9^{4}$ | $4$ | $9$ | $32$ | $( 1,24,33,12,18,31, 5,16,27)( 2,23,34,11,17,32, 6,15,28)( 3,21,35, 9,19,29, 7,14,26)( 4,22,36,10,20,30, 8,13,25)$ |
| 9A2 | $9^{4}$ | $4$ | $9$ | $32$ | $( 1,16,31,12,24,27, 5,18,33)( 2,15,32,11,23,28, 6,17,34)( 3,14,29, 9,21,26, 7,19,35)( 4,13,30,10,22,25, 8,20,36)$ |
| 9A-2 | $9^{4}$ | $4$ | $9$ | $32$ | $( 1,33,18, 5,27,24,12,31,16)( 2,34,17, 6,28,23,11,32,15)( 3,35,19, 7,26,21, 9,29,14)( 4,36,20, 8,25,22,10,30,13)$ |
| 9A4 | $9^{4}$ | $4$ | $9$ | $32$ | $( 1,31,24, 5,33,16,12,27,18)( 2,32,23, 6,34,15,11,28,17)( 3,29,21, 7,35,14, 9,26,19)( 4,30,22, 8,36,13,10,25,20)$ |
| 9A-4 | $9^{4}$ | $4$ | $9$ | $32$ | $( 1,18,27,12,16,33, 5,24,31)( 2,17,28,11,15,34, 6,23,32)( 3,19,26, 9,14,35, 7,21,29)( 4,20,25,10,13,36, 8,22,30)$ |
| 18A1 | $18^{2}$ | $4$ | $18$ | $34$ | $( 1,17,27,11,16,34, 5,23,31, 2,18,28,12,15,33, 6,24,32)( 3,20,26,10,14,36, 7,22,29, 4,19,25, 9,13,35, 8,21,30)$ |
| 18A-1 | $18^{2}$ | $4$ | $18$ | $34$ | $( 1,32,24, 6,33,15,12,28,18, 2,31,23, 5,34,16,11,27,17)( 3,30,21, 8,35,13, 9,25,19, 4,29,22, 7,36,14,10,26,20)$ |
| 18A5 | $18^{2}$ | $4$ | $18$ | $34$ | $( 1,34,18, 6,27,23,12,32,16, 2,33,17, 5,28,24,11,31,15)( 3,36,19, 8,26,22, 9,30,14, 4,35,20, 7,25,21,10,29,13)$ |
| 18A-5 | $18^{2}$ | $4$ | $18$ | $34$ | $( 1,15,31,11,24,28, 5,17,33, 2,16,32,12,23,27, 6,18,34)( 3,13,29,10,21,25, 7,20,35, 4,14,30, 9,22,26, 8,19,36)$ |
| 18A7 | $18^{2}$ | $4$ | $18$ | $34$ | $( 1,23,33,11,18,32, 5,15,27, 2,24,34,12,17,31, 6,16,28)( 3,22,35,10,19,30, 7,13,26, 4,21,36, 9,20,29, 8,14,25)$ |
| 18A-7 | $18^{2}$ | $4$ | $18$ | $34$ | $( 1,28,16, 6,31,17,12,34,24, 2,27,15, 5,32,18,11,33,23)( 3,25,14, 8,29,20, 9,36,21, 4,26,13, 7,30,19,10,35,22)$ |
Malle's constant $a(G)$: $1/12$
Character table
| 1A | 2A | 2B | 2C | 3A1 | 3A-1 | 6A1 | 6A-1 | 6B1 | 6B-1 | 6C1 | 6C-1 | 9A1 | 9A-1 | 9A2 | 9A-2 | 9A4 | 9A-4 | 18A1 | 18A-1 | 18A5 | 18A-5 | 18A7 | 18A-7 | ||
| Size | 1 | 1 | 3 | 3 | 1 | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
| 2 P | 1A | 1A | 1A | 1A | 3A-1 | 3A1 | 3A-1 | 3A1 | 3A1 | 3A-1 | 3A-1 | 3A1 | 9A2 | 9A-2 | 9A4 | 9A-4 | 9A-1 | 9A1 | 9A1 | 9A-1 | 9A-4 | 9A4 | 9A-2 | 9A2 | |
| 3 P | 1A | 2A | 2B | 2C | 1A | 1A | 2A | 2A | 2B | 2B | 2C | 2C | 3A-1 | 3A1 | 3A1 | 3A-1 | 3A-1 | 3A1 | 6A1 | 6A-1 | 6A-1 | 6A1 | 6A1 | 6A-1 | |
| Type | |||||||||||||||||||||||||
| 72.16.1a | R | ||||||||||||||||||||||||
| 72.16.1b | R | ||||||||||||||||||||||||
| 72.16.1c1 | C | ||||||||||||||||||||||||
| 72.16.1c2 | C | ||||||||||||||||||||||||
| 72.16.1d1 | C | ||||||||||||||||||||||||
| 72.16.1d2 | C | ||||||||||||||||||||||||
| 72.16.1e1 | C | ||||||||||||||||||||||||
| 72.16.1e2 | C | ||||||||||||||||||||||||
| 72.16.1e3 | C | ||||||||||||||||||||||||
| 72.16.1e4 | C | ||||||||||||||||||||||||
| 72.16.1e5 | C | ||||||||||||||||||||||||
| 72.16.1e6 | C | ||||||||||||||||||||||||
| 72.16.1f1 | C | ||||||||||||||||||||||||
| 72.16.1f2 | C | ||||||||||||||||||||||||
| 72.16.1f3 | C | ||||||||||||||||||||||||
| 72.16.1f4 | C | ||||||||||||||||||||||||
| 72.16.1f5 | C | ||||||||||||||||||||||||
| 72.16.1f6 | C | ||||||||||||||||||||||||
| 72.16.3a | R | ||||||||||||||||||||||||
| 72.16.3b | R | ||||||||||||||||||||||||
| 72.16.3c1 | C | ||||||||||||||||||||||||
| 72.16.3c2 | C | ||||||||||||||||||||||||
| 72.16.3d1 | C | ||||||||||||||||||||||||
| 72.16.3d2 | C |
Regular extensions
Data not computed