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Properties

Label 16T8
Degree $16$
Order $16$
Cyclic no
Abelian no
Solvable yes
Primitive no
$p$-group yes
Group: $C_4:C_4$

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Show commands: Magma

magma: G := TransitiveGroup(16, 8);
 

Group action invariants

Degree $n$:  $16$
magma: t, n := TransitiveGroupIdentification(G); n;
 
Transitive number $t$:  $8$
magma: t, n := TransitiveGroupIdentification(G); t;
 
Group:  $C_4:C_4$
Parity:  $1$
magma: IsEven(G);
 
Primitive:  no
magma: IsPrimitive(G);
 
magma: NilpotencyClass(G);
 
$\card{\Aut(F/K)}$:  $16$
magma: Order(Centralizer(SymmetricGroup(n), G));
 
Generators:  (1,15,6,3)(2,16,5,4)(7,14,11,9)(8,13,12,10), (1,8,6,12)(2,7,5,11)(3,9,15,14)(4,10,16,13)
magma: Generators(G);
 

Low degree resolvents

|G/N|Galois groups for stem field(s)
$2$:  $C_2$ x 3
$4$:  $C_4$ x 2, $C_2^2$
$8$:  $D_{4}$, $C_4\times C_2$, $Q_8$

Resolvents shown for degrees $\leq 47$

Subfields

Degree 2: $C_2$ x 3

Degree 4: $C_4$ x 2, $C_2^2$, $D_{4}$ x 2

Degree 8: $C_4\times C_2$, $D_4$, $Q_8$

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

Cycle TypeSizeOrderRepresentative
$ 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 $ $1$ $2$ $( 1, 2)( 3, 4)( 5, 6)( 7, 8)( 9,10)(11,12)(13,14)(15,16)$
$ 4, 4, 4, 4 $ $2$ $4$ $( 1, 3, 6,15)( 2, 4, 5,16)( 7, 9,11,14)( 8,10,12,13)$
$ 2, 2, 2, 2, 2, 2, 2, 2 $ $1$ $2$ $( 1, 5)( 2, 6)( 3,16)( 4,15)( 7,12)( 8,11)( 9,13)(10,14)$
$ 2, 2, 2, 2, 2, 2, 2, 2 $ $1$ $2$ $( 1, 6)( 2, 5)( 3,15)( 4,16)( 7,11)( 8,12)( 9,14)(10,13)$
$ 4, 4, 4, 4 $ $2$ $4$ $( 1, 7, 6,11)( 2, 8, 5,12)( 3,10,15,13)( 4, 9,16,14)$
$ 4, 4, 4, 4 $ $2$ $4$ $( 1, 9, 2,10)( 3,12, 4,11)( 5,13, 6,14)( 7,15, 8,16)$
$ 4, 4, 4, 4 $ $2$ $4$ $( 1,11, 6, 7)( 2,12, 5, 8)( 3,13,15,10)( 4,14,16, 9)$
$ 4, 4, 4, 4 $ $2$ $4$ $( 1,13, 2,14)( 3, 7, 4, 8)( 5, 9, 6,10)(11,16,12,15)$
$ 4, 4, 4, 4 $ $2$ $4$ $( 1,15, 6, 3)( 2,16, 5, 4)( 7,14,11, 9)( 8,13,12,10)$

magma: ConjugacyClasses(G);
 

Group invariants

Order:  $16=2^{4}$
magma: Order(G);
 
Cyclic:  no
magma: IsCyclic(G);
 
Abelian:  no
magma: IsAbelian(G);
 
Solvable:  yes
magma: IsSolvable(G);
 
Nilpotency class:  $2$
Label:  16.4
magma: IdentifyGroup(G);
 
Character table:    
      2  4  4  3  4  4  3  3  3  3  3

        1a 2a 4a 2b 2c 4b 4c 4d 4e 4f
     2P 1a 1a 2c 1a 1a 2c 2a 2c 2a 2c
     3P 1a 2a 4f 2b 2c 4d 4c 4b 4e 4a

X.1      1  1  1  1  1  1  1  1  1  1
X.2      1  1 -1  1  1 -1  1 -1  1 -1
X.3      1  1 -1  1  1  1 -1  1 -1 -1
X.4      1  1  1  1  1 -1 -1 -1 -1  1
X.5      1  1  A -1 -1  A -1 -A  1 -A
X.6      1  1 -A -1 -1 -A -1  A  1  A
X.7      1  1  A -1 -1 -A  1  A -1 -A
X.8      1  1 -A -1 -1  A  1 -A -1  A
X.9      2 -2  .  2 -2  .  .  .  .  .
X.10     2 -2  . -2  2  .  .  .  .  .

A = -E(4)
  = -Sqrt(-1) = -i

magma: CharacterTable(G);