Show commands:
Magma
magma: G := TransitiveGroup(8, 26);
Group action invariants
Degree $n$: | $8$ | magma: t, n := TransitiveGroupIdentification(G); n;
| |
Transitive number $t$: | $26$ | magma: t, n := TransitiveGroupIdentification(G); t;
| |
Group: | $(C_4^2 : C_2):C_2$ | ||
CHM label: | $1/2[2^{4}]eD(4)$ | ||
Parity: | $-1$ | magma: IsEven(G);
| |
Primitive: | no | magma: IsPrimitive(G);
| magma: NilpotencyClass(G);
|
$\card{\Aut(F/K)}$: | $2$ | magma: Order(Centralizer(SymmetricGroup(n), G));
| |
Generators: | (1,2,3,4,5,6,7,8), (1,7)(3,5)(4,8), (1,5)(4,8) | magma: Generators(G);
|
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 6, $C_2^3$ $16$: $D_4\times C_2$ x 3 $32$: $C_2^2 \wr C_2$ Resolvents shown for degrees $\leq 47$
Subfields
Degree 2: $C_2$
Degree 4: $D_{4}$
Low degree siblings
8T26 x 3, 16T135 x 2, 16T141 x 2, 16T142 x 2, 16T152 x 2, 32T147 x 2, 32T148 x 2, 32T155, 32T156Siblings 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 $ | $1$ | $1$ | $()$ | |
$ 2, 2, 1, 1, 1, 1 $ | $4$ | $2$ | $(3,7)(4,8)$ | |
$ 4, 1, 1, 1, 1 $ | $4$ | $4$ | $(2,4,6,8)$ | |
$ 2, 2, 2, 1, 1 $ | $8$ | $2$ | $(2,4)(3,7)(6,8)$ | |
$ 2, 2, 1, 1, 1, 1 $ | $2$ | $2$ | $(2,6)(4,8)$ | |
$ 2, 2, 2, 2 $ | $4$ | $2$ | $(1,2)(3,4)(5,6)(7,8)$ | |
$ 2, 2, 2, 2 $ | $4$ | $2$ | $(1,2)(3,8)(4,7)(5,6)$ | |
$ 8 $ | $8$ | $8$ | $(1,2,3,4,5,6,7,8)$ | |
$ 8 $ | $8$ | $8$ | $(1,2,3,8,5,6,7,4)$ | |
$ 4, 4 $ | $4$ | $4$ | $(1,2,5,6)(3,4,7,8)$ | |
$ 4, 4 $ | $4$ | $4$ | $(1,2,5,6)(3,8,7,4)$ | |
$ 2, 2, 2, 2 $ | $4$ | $2$ | $(1,3)(2,4)(5,7)(6,8)$ | |
$ 4, 4 $ | $2$ | $4$ | $(1,3,5,7)(2,4,6,8)$ | |
$ 4, 2, 2 $ | $4$ | $4$ | $(1,3,5,7)(2,6)(4,8)$ | |
$ 4, 4 $ | $2$ | $4$ | $(1,3,5,7)(2,8,6,4)$ | |
$ 2, 2, 2, 2 $ | $1$ | $2$ | $(1,5)(2,6)(3,7)(4,8)$ |
magma: ConjugacyClasses(G);
Group invariants
Order: | $64=2^{6}$ | magma: Order(G);
| |
Cyclic: | no | magma: IsCyclic(G);
| |
Abelian: | no | magma: IsAbelian(G);
| |
Solvable: | yes | magma: IsSolvable(G);
| |
Nilpotency class: | $3$ | ||
Label: | 64.134 | magma: IdentifyGroup(G);
| |
Character table: |
1A | 2A | 2B | 2C | 2D | 2E | 2F | 2G | 4A | 4B | 4C | 4D | 4E | 4F | 8A | 8B | ||
Size | 1 | 1 | 2 | 4 | 4 | 4 | 4 | 8 | 2 | 2 | 4 | 4 | 4 | 4 | 8 | 8 | |
2 P | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 2A | 2A | 2A | 2B | 2A | 2B | 4A | 4B | |
Type | |||||||||||||||||
64.134.1a | R | ||||||||||||||||
64.134.1b | R | ||||||||||||||||
64.134.1c | R | ||||||||||||||||
64.134.1d | R | ||||||||||||||||
64.134.1e | R | ||||||||||||||||
64.134.1f | R | ||||||||||||||||
64.134.1g | R | ||||||||||||||||
64.134.1h | R | ||||||||||||||||
64.134.2a | R | ||||||||||||||||
64.134.2b | R | ||||||||||||||||
64.134.2c | R | ||||||||||||||||
64.134.2d | R | ||||||||||||||||
64.134.2e | R | ||||||||||||||||
64.134.2f | R | ||||||||||||||||
64.134.4a | R | ||||||||||||||||
64.134.4b | R |
magma: CharacterTable(G);