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Properties

Label 16T15
Degree $16$
Order $32$
Cyclic no
Abelian no
Solvable yes
Primitive no
$p$-group yes
Group: $C_2 \times (C_8:C_2)$

Related objects

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Group action invariants

Degree $n$:  $16$
Transitive number $t$:  $15$
Group:  $C_2 \times (C_8:C_2)$
Parity:  $1$
Primitive:  no
Nilpotency class:  $2$
$|\Aut(F/K)|$:  $8$
Generators:  (1,8,5,12,10,16,14,4)(2,7,6,11,9,15,13,3), (1,2)(3,12)(4,11)(5,6)(7,16)(8,15)(9,10)(13,14), (1,5,10,14)(2,6,9,13)(3,15,11,7)(4,16,12,8)

Low degree resolvents

|G/N|Galois groups for stem field(s)
$2$:  $C_2$ x 7
$4$:  $C_4$ x 4, $C_2^2$ x 7
$8$:  $C_4\times C_2$ x 6, $C_2^3$
$16$:  $C_8:C_2$ x 2, $C_4\times C_2^2$

Resolvents shown for degrees $\leq 47$

Subfields

Degree 2: $C_2$ x 3

Degree 4: $C_4$ x 2, $C_2^2$

Degree 8: $C_4\times C_2$, $C_8:C_2$ x 2

Low degree siblings

16T15, 32T1

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

Group invariants

Order:  $32=2^{5}$
Cyclic:  no
Abelian:  no
Solvable:  yes
GAP id:  [32, 37]
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 8a 8b 8c 8d 4a 4b 4c 4d 8e 8f 8g 8h 2d 2e 4e 4f
     2P 1a 1a 1a 1a 4a 4f 4a 4f 2e 2e 2e 2e 4a 4f 4a 4f 1a 1a 2e 2e
     3P 1a 2a 2b 2c 8f 8e 8h 8g 4f 4b 4e 4d 8b 8a 8d 8c 2d 2e 4c 4a
     5P 1a 2a 2b 2c 8a 8b 8c 8d 4a 4b 4c 4d 8e 8f 8g 8h 2d 2e 4e 4f
     7P 1a 2a 2b 2c 8f 8e 8h 8g 4f 4b 4e 4d 8b 8a 8d 8c 2d 2e 4c 4a

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  A -A -A  A -1  1  1 -1  A -A -A  A -1  1  1 -1
X.10     1 -1 -1  1 -A  A  A -A -1  1  1 -1 -A  A  A -A -1  1  1 -1
X.11     1 -1  1 -1  A -A  A -A -1  1 -1  1  A -A  A -A  1  1 -1 -1
X.12     1 -1  1 -1 -A  A -A  A -1  1 -1  1 -A  A -A  A  1  1 -1 -1
X.13     1  1 -1 -1  A  A -A -A -1 -1  1  1 -A -A  A  A -1  1  1 -1
X.14     1  1 -1 -1 -A -A  A  A -1 -1  1  1  A  A -A -A -1  1  1 -1
X.15     1  1  1  1  A  A  A  A -1 -1 -1 -1 -A -A -A -A  1  1 -1 -1
X.16     1  1  1  1 -A -A -A -A -1 -1 -1 -1  A  A  A  A  1  1 -1 -1
X.17     2  . -2  .  .  .  .  .  B  . -B  .  .  .  .  .  2 -2  B -B
X.18     2  . -2  .  .  .  .  . -B  .  B  .  .  .  .  .  2 -2 -B  B
X.19     2  .  2  .  .  .  .  .  B  .  B  .  .  .  .  . -2 -2 -B -B
X.20     2  .  2  .  .  .  .  . -B  . -B  .  .  .  .  . -2 -2  B  B

A = -E(4)
  = -Sqrt(-1) = -i
B = -2*E(4)
  = -2*Sqrt(-1) = -2i