Properties

Label 2.5_31_41.4t3.12c1
Dimension 2
Group $D_{4}$
Conductor $ 5 \cdot 31 \cdot 41 $
Root number 1
Frobenius-Schur indicator 1

Related objects

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Basic invariants

Dimension:$2$
Group:$D_{4}$
Conductor:$6355= 5 \cdot 31 \cdot 41 $
Artin number field: Splitting field of $f= x^{4} - 2 x^{3} - 8 x^{2} + 9 x + 338 $ over $\Q$
Size of Galois orbit: 1
Smallest containing permutation representation: $D_{4}$
Parity: Odd
Determinant: 1.5_31_41.2t1.1c1

Galois action

Roots of defining polynomial

The roots of $f$ are computed in $\Q_{ 59 }$ to precision 5.
Roots:
$r_{ 1 }$ $=$ $ 19 + 17\cdot 59 + 47\cdot 59^{2} + 45\cdot 59^{3} + 10\cdot 59^{4} +O\left(59^{ 5 }\right)$
$r_{ 2 }$ $=$ $ 24 + 34\cdot 59 + 3\cdot 59^{2} + 38\cdot 59^{3} + 35\cdot 59^{4} +O\left(59^{ 5 }\right)$
$r_{ 3 }$ $=$ $ 36 + 24\cdot 59 + 55\cdot 59^{2} + 20\cdot 59^{3} + 23\cdot 59^{4} +O\left(59^{ 5 }\right)$
$r_{ 4 }$ $=$ $ 41 + 41\cdot 59 + 11\cdot 59^{2} + 13\cdot 59^{3} + 48\cdot 59^{4} +O\left(59^{ 5 }\right)$

Generators of the action on the roots $r_1, \ldots, r_{ 4 }$

Cycle notation
$(1,2)(3,4)$
$(2,3)$

Character values on conjugacy classes

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