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Properties

Label 26T4
Degree $26$
Order $52$
Cyclic no
Abelian no
Solvable yes
Primitive no
$p$-group no
Group: $C_{13}:C_4$

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Show commands: Magma

magma: G := TransitiveGroup(26, 4);
 

Group action invariants

Degree $n$:  $26$
magma: t, n := TransitiveGroupIdentification(G); n;
 
Transitive number $t$:  $4$
magma: t, n := TransitiveGroupIdentification(G); t;
 
Group:  $C_{13}:C_4$
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:  (1,3,5,7,9,12,14,16,18,20,22,24,25)(2,4,6,8,10,11,13,15,17,19,21,23,26), (1,10,24,15)(2,9,23,16)(3,19,22,6)(4,20,21,5)(7,13,18,11)(8,14,17,12)(25,26)
magma: Generators(G);
 

Low degree resolvents

|G/N|Galois groups for stem field(s)
$2$:  $C_2$
$4$:  $C_4$

Resolvents shown for degrees $\leq 47$

Subfields

Degree 2: $C_2$

Degree 13: $C_{13}:C_4$

Low degree siblings

13T4

Siblings are shown with degree $\leq 47$

A number field with this Galois group has no arithmetically equivalent fields.

Conjugacy classes

Cycle TypeSizeOrderRepresentative
$ 1, 1, 1, 1, 1, 1, 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, 2, 2, 2, 2, 1, 1 $ $13$ $2$ $( 3,25)( 4,26)( 5,24)( 6,23)( 7,22)( 8,21)( 9,20)(10,19)(11,17)(12,18)(13,15) (14,16)$
$ 4, 4, 4, 4, 4, 4, 2 $ $13$ $4$ $( 1, 2)( 3,11,25,17)( 4,12,26,18)( 5,21,24, 8)( 6,22,23, 7)( 9,15,20,13) (10,16,19,14)$
$ 4, 4, 4, 4, 4, 4, 2 $ $13$ $4$ $( 1, 2)( 3,17,25,11)( 4,18,26,12)( 5, 8,24,21)( 6, 7,23,22)( 9,13,20,15) (10,14,19,16)$
$ 13, 13 $ $4$ $13$ $( 1, 3, 5, 7, 9,12,14,16,18,20,22,24,25)( 2, 4, 6, 8,10,11,13,15,17,19,21,23, 26)$
$ 13, 13 $ $4$ $13$ $( 1, 5, 9,14,18,22,25, 3, 7,12,16,20,24)( 2, 6,10,13,17,21,26, 4, 8,11,15,19, 23)$
$ 13, 13 $ $4$ $13$ $( 1, 9,18,25, 7,16,24, 5,14,22, 3,12,20)( 2,10,17,26, 8,15,23, 6,13,21, 4,11, 19)$

magma: ConjugacyClasses(G);
 

Group invariants

Order:  $52=2^{2} \cdot 13$
magma: Order(G);
 
Cyclic:  no
magma: IsCyclic(G);
 
Abelian:  no
magma: IsAbelian(G);
 
Solvable:  yes
magma: IsSolvable(G);
 
Nilpotency class:   not nilpotent
Label:  52.3
magma: IdentifyGroup(G);
 
Character table:    
     2  2  2  2  2   .   .   .
    13  1  .  .  .   1   1   1

       1a 2a 4a 4b 13a 13b 13c
    2P 1a 1a 2a 2a 13b 13c 13a
    3P 1a 2a 4b 4a 13b 13c 13a
    5P 1a 2a 4a 4b 13a 13b 13c
    7P 1a 2a 4b 4a 13c 13a 13b
   11P 1a 2a 4b 4a 13b 13c 13a
   13P 1a 2a 4a 4b  1a  1a  1a

X.1     1  1  1  1   1   1   1
X.2     1  1 -1 -1   1   1   1
X.3     1 -1  A -A   1   1   1
X.4     1 -1 -A  A   1   1   1
X.5     4  .  .  .   B   C   D
X.6     4  .  .  .   C   D   B
X.7     4  .  .  .   D   B   C

A = -E(4)
  = -Sqrt(-1) = -i
B = E(13)^2+E(13)^3+E(13)^10+E(13)^11
C = E(13)^4+E(13)^6+E(13)^7+E(13)^9
D = E(13)+E(13)^5+E(13)^8+E(13)^12

magma: CharacterTable(G);