Group action invariants
| Degree $n$ : | $20$ | |
| Transitive number $t$ : | $92$ | |
| Group : | $C_2\times D_5\wr C_2$ | |
| Parity: | $-1$ | |
| Primitive: | No | |
| Nilpotency class: | $-1$ (not nilpotent) | |
| Generators: | (3,20,16,11,7)(4,19,15,12,8), (1,10)(2,9)(5,6)(13,17)(14,18), (1,17,13,10,6,2,18,14,9,5)(3,4)(7,8)(11,12)(15,16)(19,20), (1,12)(2,11)(3,14)(4,13)(5,16)(6,15)(7,17)(8,18)(9,19)(10,20) | |
| $|\Aut(F/K)|$: | $2$ |
Low degree resolvents
|G/N| Galois groups for stem field(s) 2: $C_2$ x 7 4: $C_2^2$ x 7 8: $D_{4}$ x 2, $C_2^3$ 16: $D_4\times C_2$ 200: $D_5^2 : C_2$ Resolvents shown for degrees $\leq 47$
Subfields
Degree 2: $C_2$
Degree 4: $D_{4}$
Degree 5: None
Degree 10: $D_5^2 : C_2$
Low degree siblings
20T92 x 3, 20T98 x 2, 20T100 x 4, 40T329 x 4, 40T340 x 2, 40T342 x 2, 40T362, 40T366, 40T373 x 4Siblings are shown with degree $\leq 47$
A number field with this Galois group has no arithmetically equivalent fields.
Conjugacy Classes
| 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 $ | $1$ | $1$ | $()$ |
| $ 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1 $ | $25$ | $2$ | $( 5,17)( 6,18)( 7,20)( 8,19)( 9,13)(10,14)(11,16)(12,15)$ |
| $ 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 $ | $10$ | $2$ | $( 3, 4)( 7,19)( 8,20)(11,15)(12,16)$ |
| $ 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1 $ | $10$ | $2$ | $( 3, 4)( 5,17)( 6,18)( 7, 8)( 9,13)(10,14)(11,12)(15,16)(19,20)$ |
| $ 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 $ | $4$ | $5$ | $( 3, 7,11,16,20)( 4, 8,12,15,19)$ |
| $ 10, 2, 2, 2, 2, 1, 1 $ | $20$ | $10$ | $( 3, 8,11,15,20, 4, 7,12,16,19)( 5,17)( 6,18)( 9,13)(10,14)$ |
| $ 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 $ | $4$ | $5$ | $( 3,11,20, 7,16)( 4,12,19, 8,15)$ |
| $ 10, 2, 2, 2, 2, 1, 1 $ | $20$ | $10$ | $( 3,12,20, 8,16, 4,11,19, 7,15)( 5,17)( 6,18)( 9,13)(10,14)$ |
| $ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 $ | $1$ | $2$ | $( 1, 2)( 3, 4)( 5, 6)( 7, 8)( 9,10)(11,12)(13,14)(15,16)(17,18)(19,20)$ |
| $ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 $ | $25$ | $2$ | $( 1, 2)( 3, 4)( 5,18)( 6,17)( 7,19)( 8,20)( 9,14)(10,13)(11,15)(12,16)$ |
| $ 5, 5, 2, 2, 2, 2, 2 $ | $20$ | $10$ | $( 1, 2)( 3, 7,11,16,20)( 4, 8,12,15,19)( 5,18)( 6,17)( 9,14)(10,13)$ |
| $ 10, 2, 2, 2, 2, 2 $ | $4$ | $10$ | $( 1, 2)( 3, 8,11,15,20, 4, 7,12,16,19)( 5, 6)( 9,10)(13,14)(17,18)$ |
| $ 5, 5, 2, 2, 2, 2, 2 $ | $20$ | $10$ | $( 1, 2)( 3,11,20, 7,16)( 4,12,19, 8,15)( 5,18)( 6,17)( 9,14)(10,13)$ |
| $ 10, 2, 2, 2, 2, 2 $ | $4$ | $10$ | $( 1, 2)( 3,12,20, 8,16, 4,11,19, 7,15)( 5, 6)( 9,10)(13,14)(17,18)$ |
| $ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 $ | $10$ | $2$ | $( 1, 3)( 2, 4)( 5, 8)( 6, 7)( 9,11)(10,12)(13,16)(14,15)(17,19)(18,20)$ |
| $ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 $ | $10$ | $2$ | $( 1, 3)( 2, 4)( 5,19)( 6,20)( 7,18)( 8,17)( 9,16)(10,15)(11,13)(12,14)$ |
| $ 4, 4, 4, 4, 4 $ | $50$ | $4$ | $( 1, 3, 2, 4)( 5, 8,18,20)( 6, 7,17,19)( 9,11,14,15)(10,12,13,16)$ |
| $ 4, 4, 4, 4, 4 $ | $50$ | $4$ | $( 1, 3, 2, 4)( 5,19,18, 7)( 6,20,17, 8)( 9,16,14,12)(10,15,13,11)$ |
| $ 10, 10 $ | $20$ | $10$ | $( 1, 3, 6, 7, 9,11,13,16,18,20)( 2, 4, 5, 8,10,12,14,15,17,19)$ |
| $ 10, 10 $ | $20$ | $10$ | $( 1, 3, 6,20, 9,16,13,11,18, 7)( 2, 4, 5,19,10,15,14,12,17, 8)$ |
| $ 10, 10 $ | $20$ | $10$ | $( 1, 3, 9,11,18,20, 6, 7,13,16)( 2, 4,10,12,17,19, 5, 8,14,15)$ |
| $ 10, 10 $ | $20$ | $10$ | $( 1, 3, 9,16,18, 7, 6,20,13,11)( 2, 4,10,15,17, 8, 5,19,14,12)$ |
| $ 10, 10 $ | $4$ | $10$ | $( 1, 5, 9,14,18, 2, 6,10,13,17)( 3, 8,11,15,20, 4, 7,12,16,19)$ |
| $ 10, 10 $ | $8$ | $10$ | $( 1, 5, 9,14,18, 2, 6,10,13,17)( 3,12,20, 8,16, 4,11,19, 7,15)$ |
| $ 5, 5, 5, 5 $ | $4$ | $5$ | $( 1, 6, 9,13,18)( 2, 5,10,14,17)( 3, 7,11,16,20)( 4, 8,12,15,19)$ |
| $ 5, 5, 5, 5 $ | $8$ | $5$ | $( 1, 6, 9,13,18)( 2, 5,10,14,17)( 3,11,20, 7,16)( 4,12,19, 8,15)$ |
| $ 5, 5, 5, 5 $ | $4$ | $5$ | $( 1, 9,18, 6,13)( 2,10,17, 5,14)( 3,11,20, 7,16)( 4,12,19, 8,15)$ |
| $ 10, 10 $ | $4$ | $10$ | $( 1,10,18, 5,13, 2, 9,17, 6,14)( 3,12,20, 8,16, 4,11,19, 7,15)$ |
Group invariants
| Order: | $400=2^{4} \cdot 5^{2}$ | |
| Cyclic: | No | |
| Abelian: | No | |
| Solvable: | Yes | |
| GAP id: | [400, 211] |
| Character table: Data not available. |