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Magma
magma: G := TransitiveGroup(13, 2);
Group invariants
Abstract group: | $D_{13}$ | magma: IdentifyGroup(G);
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Order: | $26=2 \cdot 13$ | magma: Order(G);
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Cyclic: | no | magma: IsCyclic(G);
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Abelian: | no | magma: IsAbelian(G);
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Solvable: | yes | magma: IsSolvable(G);
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Nilpotency class: | not nilpotent | magma: NilpotencyClass(G);
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Group action invariants
Degree $n$: | $13$ | magma: t, n := TransitiveGroupIdentification(G); n;
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Transitive number $t$: | $2$ | magma: t, n := TransitiveGroupIdentification(G); t;
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CHM label: | $D(13)=13:2$ | ||
Parity: | $1$ | magma: IsEven(G);
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Primitive: | yes | magma: IsPrimitive(G);
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$\card{\Aut(F/K)}$: | $1$ | magma: Order(Centralizer(SymmetricGroup(n), G));
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Generators: | $(1,2,3,4,5,6,7,8,9,10,11,12,13)$, $(1,12)(2,11)(3,10)(4,9)(5,8)(6,7)$ | magma: Generators(G);
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Low degree resolvents
$\card{(G/N)}$ Galois groups for stem field(s) $2$: $C_2$ Resolvents shown for degrees $\leq 47$
Subfields
Prime degree - none
Low degree siblings
26T2Siblings 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 | $1^{13}$ | $1$ | $1$ | $0$ | $()$ |
2A | $2^{6},1$ | $13$ | $2$ | $6$ | $( 2,13)( 3,12)( 4,11)( 5,10)( 6, 9)( 7, 8)$ |
13A1 | $13$ | $2$ | $13$ | $12$ | $( 1,11, 8, 5, 2,12, 9, 6, 3,13,10, 7, 4)$ |
13A2 | $13$ | $2$ | $13$ | $12$ | $( 1,10, 6, 2,11, 7, 3,12, 8, 4,13, 9, 5)$ |
13A3 | $13$ | $2$ | $13$ | $12$ | $( 1, 9, 4,12, 7, 2,10, 5,13, 8, 3,11, 6)$ |
13A4 | $13$ | $2$ | $13$ | $12$ | $( 1, 8, 2, 9, 3,10, 4,11, 5,12, 6,13, 7)$ |
13A5 | $13$ | $2$ | $13$ | $12$ | $( 1,13,12,11,10, 9, 8, 7, 6, 5, 4, 3, 2)$ |
13A6 | $13$ | $2$ | $13$ | $12$ | $( 1,12,10, 8, 6, 4, 2,13,11, 9, 7, 5, 3)$ |
Malle's constant $a(G)$: $1/6$
magma: ConjugacyClasses(G);
Character table
1A | 2A | 13A1 | 13A2 | 13A3 | 13A4 | 13A5 | 13A6 | ||
Size | 1 | 13 | 2 | 2 | 2 | 2 | 2 | 2 | |
2 P | 1A | 1A | 13A6 | 13A5 | 13A3 | 13A1 | 13A2 | 13A4 | |
13 P | 1A | 2A | 13A4 | 13A1 | 13A2 | 13A5 | 13A3 | 13A6 | |
Type | |||||||||
26.1.1a | R | ||||||||
26.1.1b | R | ||||||||
26.1.2a1 | R | ||||||||
26.1.2a2 | R | ||||||||
26.1.2a3 | R | ||||||||
26.1.2a4 | R | ||||||||
26.1.2a5 | R | ||||||||
26.1.2a6 | R |
magma: CharacterTable(G);
Regular extensions
Data not computed