Properties

Label 8T10
Order \(16\)
n \(8\)
Cyclic No
Abelian No
Solvable Yes
Primitive No
$p$-group Yes
Group: $C_2^2:C_4$

Related objects

Group action invariants

Degree $n$ :  $8$
Transitive number $t$ :  $10$
Group :  $C_2^2:C_4$
CHM label :  $[2^{2}]4$
Parity:  $1$
Primitive:  No
Generators:   (1,2,3,8)(4,5,6,7), (1,5)(3,7)
$|\Aut(F/K)|$:  $4$
Low degree resolvents:  
2: 2T1, 2T1, 2T1
4: 4T1, 4T1, 4T2
8: 4T3, 4T3, 8T2

Subfields

Degree 2: $C_2$

Degree 4: $C_4$, $D_4$, $D_4$

Low degree siblings

8T10b, 16T10
A number field with this Galois group has no arithmetically equivalent fields.

Conjugacy Classes

Cycle TypeSizeOrderRepresentative
$ 1, 1, 1, 1, 1, 1, 1, 1 $ $1$ $1$ $()$
$ 2, 2, 1, 1, 1, 1 $ $2$ $2$ $(2,6)(4,8)$
$ 4, 4 $ $2$ $4$ $(1,2,3,8)(4,5,6,7)$
$ 4, 4 $ $2$ $4$ $(1,2,7,4)(3,8,5,6)$
$ 2, 2, 2, 2 $ $2$ $2$ $(1,3)(2,4)(5,7)(6,8)$
$ 2, 2, 2, 2 $ $1$ $2$ $(1,3)(2,8)(4,6)(5,7)$
$ 4, 4 $ $2$ $4$ $(1,4,7,2)(3,6,5,8)$
$ 4, 4 $ $2$ $4$ $(1,4,3,6)(2,5,8,7)$
$ 2, 2, 2, 2 $ $1$ $2$ $(1,5)(2,6)(3,7)(4,8)$
$ 2, 2, 2, 2 $ $1$ $2$ $(1,7)(2,4)(3,5)(6,8)$

Group invariants

Order:  $16=2^{4}$
Cyclic:  No
Abelian:  No
Solvable:  Yes
GAP id:  [16, 3]
Character table:  
      2  4  3  3  3  3  4  3  3  4  4

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

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 -A  1 -1  A -A  1 -1
X.6      1 -1 -A  A  1 -1 -A  A  1 -1
X.7      1  1  A  A -1 -1 -A -A  1 -1
X.8      1  1 -A -A -1 -1  A  A  1 -1
X.9      2  .  .  .  .  2  .  . -2 -2
X.10     2  .  .  .  . -2  .  . -2  2

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