Properties

Label 1.13_19.3t1.2
Dimension 1
Group $C_3$
Conductor $ 13 \cdot 19 $
Frobenius-Schur indicator 0

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Basic invariants

Dimension:$1$
Group:$C_3$
Conductor:$247= 13 \cdot 19 $
Artin number field: Splitting field of $f= x^{3} - x^{2} - 82 x + 311 $ over $\Q$
Size of Galois orbit: 2
Smallest containing permutation representation: $C_3$
Parity: Even

Galois action

Roots of defining polynomial

The roots of $f$ are computed in $\Q_{ 17 }$ to precision 5.
Roots:
$r_{ 1 }$ $=$ $ 9 + 3\cdot 17 + 9\cdot 17^{2} + 6\cdot 17^{3} + 11\cdot 17^{4} +O\left(17^{ 5 }\right)$
$r_{ 2 }$ $=$ $ 10 + 17 + 7\cdot 17^{2} + 11\cdot 17^{3} + 13\cdot 17^{4} +O\left(17^{ 5 }\right)$
$r_{ 3 }$ $=$ $ 16 + 11\cdot 17 + 16\cdot 17^{3} + 8\cdot 17^{4} +O\left(17^{ 5 }\right)$

Generators of the action on the roots $ r_{ 1 }, r_{ 2 }, r_{ 3 } $

Cycle notation
$(1,2,3)$

Character values on conjugacy classes

SizeOrderAction on $ r_{ 1 }, r_{ 2 }, r_{ 3 } $ Character values
$c1$ $c2$
$1$ $1$ $()$ $1$ $1$
$1$ $3$ $(1,2,3)$ $\zeta_{3}$ $-\zeta_{3} - 1$
$1$ $3$ $(1,3,2)$ $-\zeta_{3} - 1$ $\zeta_{3}$
The blue line marks the conjugacy class containing complex conjugation.