Properties

Label 2.13_113.4t3.3
Dimension 2
Group $D_4$
Conductor $ 13 \cdot 113 $
Frobenius-Schur indicator 1

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Basic invariants

Dimension:$2$
Group:$D_4$
Conductor:$1469= 13 \cdot 113 $
Artin number field: Splitting field of $f= x^{8} + 39 x^{6} + 128 x^{4} + 39 x^{2} + 1 $ over $\Q$
Size of Galois orbit: 1
Smallest containing permutation representation: $D_{4}$
Parity: Even

Galois action

Roots of defining polynomial

The roots of $f$ are computed in $\Q_{ 53 }$ to precision 6.
Roots:
$r_{ 1 }$ $=$ $ 8 + 14\cdot 53 + 12\cdot 53^{2} + 27\cdot 53^{3} + 34\cdot 53^{4} + 31\cdot 53^{5} +O\left(53^{ 6 }\right)$
$r_{ 2 }$ $=$ $ 14 + 49\cdot 53 + 16\cdot 53^{2} + 6\cdot 53^{3} + 43\cdot 53^{4} + 43\cdot 53^{5} +O\left(53^{ 6 }\right)$
$r_{ 3 }$ $=$ $ 19 + 24\cdot 53 + 44\cdot 53^{2} + 12\cdot 53^{3} + 51\cdot 53^{4} + 20\cdot 53^{5} +O\left(53^{ 6 }\right)$
$r_{ 4 }$ $=$ $ 20 + 11\cdot 53 + 36\cdot 53^{2} + 17\cdot 53^{3} + 3\cdot 53^{4} + 11\cdot 53^{5} +O\left(53^{ 6 }\right)$
$r_{ 5 }$ $=$ $ 33 + 41\cdot 53 + 16\cdot 53^{2} + 35\cdot 53^{3} + 49\cdot 53^{4} + 41\cdot 53^{5} +O\left(53^{ 6 }\right)$
$r_{ 6 }$ $=$ $ 34 + 28\cdot 53 + 8\cdot 53^{2} + 40\cdot 53^{3} + 53^{4} + 32\cdot 53^{5} +O\left(53^{ 6 }\right)$
$r_{ 7 }$ $=$ $ 39 + 3\cdot 53 + 36\cdot 53^{2} + 46\cdot 53^{3} + 9\cdot 53^{4} + 9\cdot 53^{5} +O\left(53^{ 6 }\right)$
$r_{ 8 }$ $=$ $ 45 + 38\cdot 53 + 40\cdot 53^{2} + 25\cdot 53^{3} + 18\cdot 53^{4} + 21\cdot 53^{5} +O\left(53^{ 6 }\right)$

Generators of the action on the roots $r_1, \ldots, r_{ 8 }$

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

Character values on conjugacy classes

SizeOrderAction on $r_1, \ldots, r_{ 8 }$ Character values
$c1$
$1$ $1$ $()$ $2$
$1$ $2$ $(1,8)(2,7)(3,6)(4,5)$ $-2$
$2$ $2$ $(1,2)(3,4)(5,6)(7,8)$ $0$
$2$ $2$ $(1,5)(2,3)(4,8)(6,7)$ $0$
$2$ $4$ $(1,3,8,6)(2,5,7,4)$ $0$
The blue line marks the conjugacy class containing complex conjugation.