Show commands: Magma
Group invariants
Abstract group: | $Q_8\times C_2$ |
| |
Order: | $16=2^{4}$ |
| |
Cyclic: | no |
| |
Abelian: | no |
| |
Solvable: | yes |
| |
Nilpotency class: | $2$ |
|
Group action invariants
Degree $n$: | $16$ |
| |
Transitive number $t$: | $7$ |
| |
Parity: | $1$ |
| |
Primitive: | no |
| |
$\card{\Aut(F/K)}$: | $16$ |
| |
Generators: | $(1,14,2,13)(3,8,4,7)(5,10,6,9)(11,16,12,15)$, $(1,15,2,16)(3,5,4,6)(7,10,8,9)(11,14,12,13)$, $(1,6)(2,5)(3,15)(4,16)(7,12)(8,11)(9,14)(10,13)$ |
|
Low degree resolvents
$\card{(G/N)}$ Galois groups for stem field(s) $2$: $C_2$ x 7 $4$: $C_2^2$ x 7 $8$: $C_2^3$, $Q_8$ x 2 Resolvents shown for degrees $\leq 47$
Subfields
Degree 2: $C_2$ x 7
Degree 4: $C_2^2$ x 7
Low degree siblings
There are no siblings 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 | $1^{16}$ | $1$ | $1$ | $0$ | $()$ |
2A | $2^{8}$ | $1$ | $2$ | $8$ | $( 1, 6)( 2, 5)( 3,15)( 4,16)( 7,12)( 8,11)( 9,14)(10,13)$ |
2B | $2^{8}$ | $1$ | $2$ | $8$ | $( 1, 5)( 2, 6)( 3,16)( 4,15)( 7,11)( 8,12)( 9,13)(10,14)$ |
2C | $2^{8}$ | $1$ | $2$ | $8$ | $( 1, 2)( 3, 4)( 5, 6)( 7, 8)( 9,10)(11,12)(13,14)(15,16)$ |
4A | $4^{4}$ | $2$ | $4$ | $12$ | $( 1,14, 2,13)( 3, 8, 4, 7)( 5,10, 6, 9)(11,16,12,15)$ |
4B | $4^{4}$ | $2$ | $4$ | $12$ | $( 1,15, 2,16)( 3, 5, 4, 6)( 7,10, 8, 9)(11,14,12,13)$ |
4C | $4^{4}$ | $2$ | $4$ | $12$ | $( 1,11, 2,12)( 3,10, 4, 9)( 5, 7, 6, 8)(13,16,14,15)$ |
4D | $4^{4}$ | $2$ | $4$ | $12$ | $( 1, 9, 2,10)( 3,11, 4,12)( 5,13, 6,14)( 7,15, 8,16)$ |
4E | $4^{4}$ | $2$ | $4$ | $12$ | $( 1, 3, 2, 4)( 5,16, 6,15)( 7,13, 8,14)( 9,12,10,11)$ |
4F | $4^{4}$ | $2$ | $4$ | $12$ | $( 1, 8, 2, 7)( 3,13, 4,14)( 5,12, 6,11)( 9,15,10,16)$ |
Malle's constant $a(G)$: $1/8$
Character table
1A | 2A | 2B | 2C | 4A | 4B | 4C | 4D | 4E | 4F | ||
Size | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | |
2 P | 1A | 1A | 1A | 1A | 2C | 2C | 2C | 2C | 2C | 2C | |
Type | |||||||||||
16.12.1a | R | ||||||||||
16.12.1b | R | ||||||||||
16.12.1c | R | ||||||||||
16.12.1d | R | ||||||||||
16.12.1e | R | ||||||||||
16.12.1f | R | ||||||||||
16.12.1g | R | ||||||||||
16.12.1h | R | ||||||||||
16.12.2a | S | ||||||||||
16.12.2b | S |
Regular extensions
Data not computed