Properties

Label 2.5_11.4t3.1c1
Dimension 2
Group $D_{4}$
Conductor $ 5 \cdot 11 $
Root number 1
Frobenius-Schur indicator 1

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Basic invariants

Dimension:$2$
Group:$D_{4}$
Conductor:$55= 5 \cdot 11 $
Artin number field: Splitting field of $f= x^{4} - x^{3} + 2 x - 1 $ over $\Q$
Size of Galois orbit: 1
Smallest containing permutation representation: $D_{4}$
Parity: Odd
Determinant: 1.5_11.2t1.1c1

Galois action

Roots of defining polynomial

The roots of $f$ are computed in $\Q_{ 59 }$ to precision 5.
Roots:
$r_{ 1 }$ $=$ $ 3 + 27\cdot 59 + 50\cdot 59^{2} + 50\cdot 59^{3} + 9\cdot 59^{4} +O\left(59^{ 5 }\right)$
$r_{ 2 }$ $=$ $ 8 + 4\cdot 59 + 33\cdot 59^{2} + 33\cdot 59^{3} + 2\cdot 59^{4} +O\left(59^{ 5 }\right)$
$r_{ 3 }$ $=$ $ 18 + 49\cdot 59 + 51\cdot 59^{2} + 11\cdot 59^{3} + 34\cdot 59^{4} +O\left(59^{ 5 }\right)$
$r_{ 4 }$ $=$ $ 31 + 37\cdot 59 + 41\cdot 59^{2} + 21\cdot 59^{3} + 12\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.