Show commands:
Magma
magma: G := TransitiveGroup(16, 18);
Group action invariants
Degree $n$: | $16$ | magma: t, n := TransitiveGroupIdentification(G); n;
| |
Transitive number $t$: | $18$ | magma: t, n := TransitiveGroupIdentification(G); t;
| |
Group: | $C_2 \times (C_4\times C_2):C_2$ | ||
Parity: | $1$ | magma: IsEven(G);
| |
Primitive: | no | magma: IsPrimitive(G);
| magma: NilpotencyClass(G);
|
$\card{\Aut(F/K)}$: | $8$ | magma: Order(Centralizer(SymmetricGroup(n), G));
| |
Generators: | (1,16)(2,15)(3,6)(4,5)(7,10)(8,9)(11,14)(12,13), (1,5,10,13)(2,6,9,14)(3,8,11,15)(4,7,12,16), (1,9)(2,10)(3,4)(5,14)(6,13)(7,8)(11,12)(15,16), (1,2)(3,4)(5,6)(7,8)(9,10)(11,12)(13,14)(15,16) | magma: Generators(G);
|
Low degree resolvents
|G/N| Galois groups for stem field(s) $2$: $C_2$ x 15 $4$: $C_2^2$ x 35 $8$: $C_2^3$ x 15 $16$: $Q_8:C_2$ x 2, $C_2^4$ Resolvents shown for degrees $\leq 47$
Subfields
Degree 2: $C_2$ x 7
Degree 4: $C_2^2$ x 7
Low degree siblings
16T18 x 5, 32T4Siblings 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 $ | $1$ | $1$ | $()$ |
$ 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1 $ | $2$ | $2$ | $( 3,11)( 4,12)( 7,16)( 8,15)$ |
$ 2, 2, 2, 2, 2, 2, 2, 2 $ | $1$ | $2$ | $( 1, 2)( 3, 4)( 5, 6)( 7, 8)( 9,10)(11,12)(13,14)(15,16)$ |
$ 2, 2, 2, 2, 2, 2, 2, 2 $ | $2$ | $2$ | $( 1, 2)( 3,12)( 4,11)( 5, 6)( 7,15)( 8,16)( 9,10)(13,14)$ |
$ 2, 2, 2, 2, 2, 2, 2, 2 $ | $2$ | $2$ | $( 1, 3)( 2, 4)( 5, 8)( 6, 7)( 9,12)(10,11)(13,15)(14,16)$ |
$ 4, 4, 4, 4 $ | $2$ | $4$ | $( 1, 3,10,11)( 2, 4, 9,12)( 5, 8,13,15)( 6, 7,14,16)$ |
$ 2, 2, 2, 2, 2, 2, 2, 2 $ | $2$ | $2$ | $( 1, 4)( 2, 3)( 5, 7)( 6, 8)( 9,11)(10,12)(13,16)(14,15)$ |
$ 4, 4, 4, 4 $ | $2$ | $4$ | $( 1, 4,10,12)( 2, 3, 9,11)( 5, 7,13,16)( 6, 8,14,15)$ |
$ 4, 4, 4, 4 $ | $1$ | $4$ | $( 1, 5,10,13)( 2, 6, 9,14)( 3, 8,11,15)( 4, 7,12,16)$ |
$ 4, 4, 4, 4 $ | $2$ | $4$ | $( 1, 5,10,13)( 2, 6, 9,14)( 3,15,11, 8)( 4,16,12, 7)$ |
$ 4, 4, 4, 4 $ | $1$ | $4$ | $( 1, 6,10,14)( 2, 5, 9,13)( 3, 7,11,16)( 4, 8,12,15)$ |
$ 4, 4, 4, 4 $ | $2$ | $4$ | $( 1, 6,10,14)( 2, 5, 9,13)( 3,16,11, 7)( 4,15,12, 8)$ |
$ 4, 4, 4, 4 $ | $2$ | $4$ | $( 1, 7,10,16)( 2, 8, 9,15)( 3, 6,11,14)( 4, 5,12,13)$ |
$ 2, 2, 2, 2, 2, 2, 2, 2 $ | $2$ | $2$ | $( 1, 7)( 2, 8)( 3,14)( 4,13)( 5,12)( 6,11)( 9,15)(10,16)$ |
$ 4, 4, 4, 4 $ | $2$ | $4$ | $( 1, 8,10,15)( 2, 7, 9,16)( 3, 5,11,13)( 4, 6,12,14)$ |
$ 2, 2, 2, 2, 2, 2, 2, 2 $ | $2$ | $2$ | $( 1, 8)( 2, 7)( 3,13)( 4,14)( 5,11)( 6,12)( 9,16)(10,15)$ |
$ 2, 2, 2, 2, 2, 2, 2, 2 $ | $1$ | $2$ | $( 1, 9)( 2,10)( 3,12)( 4,11)( 5,14)( 6,13)( 7,15)( 8,16)$ |
$ 2, 2, 2, 2, 2, 2, 2, 2 $ | $1$ | $2$ | $( 1,10)( 2, 9)( 3,11)( 4,12)( 5,13)( 6,14)( 7,16)( 8,15)$ |
$ 4, 4, 4, 4 $ | $1$ | $4$ | $( 1,13,10, 5)( 2,14, 9, 6)( 3,15,11, 8)( 4,16,12, 7)$ |
$ 4, 4, 4, 4 $ | $1$ | $4$ | $( 1,14,10, 6)( 2,13, 9, 5)( 3,16,11, 7)( 4,15,12, 8)$ |
magma: ConjugacyClasses(G);
Group invariants
Order: | $32=2^{5}$ | magma: Order(G);
| |
Cyclic: | no | magma: IsCyclic(G);
| |
Abelian: | no | magma: IsAbelian(G);
| |
Solvable: | yes | magma: IsSolvable(G);
| |
Nilpotency class: | $2$ | ||
Label: | 32.48 | magma: IdentifyGroup(G);
|
Character table: |
2 5 4 5 4 4 4 4 4 5 4 5 4 4 4 4 4 5 5 5 5 1a 2a 2b 2c 2d 4a 2e 4b 4c 4d 4e 4f 4g 2f 4h 2g 2h 2i 4i 4j 2P 1a 1a 1a 1a 1a 2i 1a 2i 2i 2i 2i 2i 2i 1a 2i 1a 1a 1a 2i 2i 3P 1a 2a 2b 2c 2d 4a 2e 4b 4i 4d 4j 4f 4g 2f 4h 2g 2h 2i 4c 4e X.1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 X.2 1 -1 -1 1 -1 1 1 -1 -1 1 1 -1 -1 1 1 -1 -1 1 -1 1 X.3 1 -1 -1 1 -1 1 1 -1 1 -1 -1 1 1 -1 -1 1 -1 1 1 -1 X.4 1 -1 -1 1 1 -1 -1 1 -1 1 1 -1 1 -1 -1 1 -1 1 -1 1 X.5 1 -1 -1 1 1 -1 -1 1 1 -1 -1 1 -1 1 1 -1 -1 1 1 -1 X.6 1 -1 1 -1 -1 1 -1 1 -1 1 -1 1 1 -1 1 -1 1 1 -1 -1 X.7 1 -1 1 -1 -1 1 -1 1 1 -1 1 -1 -1 1 -1 1 1 1 1 1 X.8 1 -1 1 -1 1 -1 1 -1 -1 1 -1 1 -1 1 -1 1 1 1 -1 -1 X.9 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 1 1 1 X.10 1 1 -1 -1 -1 -1 1 1 -1 -1 1 1 -1 -1 1 1 -1 1 -1 1 X.11 1 1 -1 -1 -1 -1 1 1 1 1 -1 -1 1 1 -1 -1 -1 1 1 -1 X.12 1 1 -1 -1 1 1 -1 -1 -1 -1 1 1 1 1 -1 -1 -1 1 -1 1 X.13 1 1 -1 -1 1 1 -1 -1 1 1 -1 -1 -1 -1 1 1 -1 1 1 -1 X.14 1 1 1 1 -1 -1 -1 -1 -1 -1 -1 -1 1 1 1 1 1 1 -1 -1 X.15 1 1 1 1 -1 -1 -1 -1 1 1 1 1 -1 -1 -1 -1 1 1 1 1 X.16 1 1 1 1 1 1 1 1 -1 -1 -1 -1 -1 -1 -1 -1 1 1 -1 -1 X.17 2 . -2 . . . . . A . -A . . . . . 2 -2 -A A X.18 2 . -2 . . . . . -A . A . . . . . 2 -2 A -A X.19 2 . 2 . . . . . A . A . . . . . -2 -2 -A -A X.20 2 . 2 . . . . . -A . -A . . . . . -2 -2 A A A = -2*E(4) = -2*Sqrt(-1) = -2i |
magma: CharacterTable(G);