Basic invariants
Galois action
Roots of defining polynomial
The roots of $f$ are computed in an extension of $\Q_{ 19 }$ to precision 5.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 19 }$: $ x^{2} + 18 x + 2 $
Roots:
| $r_{ 1 }$ |
$=$ |
$ 18 a + 17 + \left(8 a + 7\right)\cdot 19 + \left(10 a + 18\right)\cdot 19^{2} + \left(12 a + 16\right)\cdot 19^{3} + \left(17 a + 3\right)\cdot 19^{4} +O\left(19^{ 5 }\right)$ |
| $r_{ 2 }$ |
$=$ |
$ 2 + 18\cdot 19 + 19^{2} + 17\cdot 19^{3} + 12\cdot 19^{4} +O\left(19^{ 5 }\right)$ |
| $r_{ 3 }$ |
$=$ |
$ a + 16 + \left(10 a + 17\right)\cdot 19 + 8 a\cdot 19^{2} + 6 a\cdot 19^{3} + \left(a + 9\right)\cdot 19^{4} +O\left(19^{ 5 }\right)$ |
| $r_{ 4 }$ |
$=$ |
$ 13 a + 1 + \left(a + 12\right)\cdot 19 + \left(14 a + 13\right)\cdot 19^{2} + \left(7 a + 4\right)\cdot 19^{3} + \left(12 a + 8\right)\cdot 19^{4} +O\left(19^{ 5 }\right)$ |
| $r_{ 5 }$ |
$=$ |
$ 6 a + 14 + 17 a\cdot 19 + \left(4 a + 7\right)\cdot 19^{2} + \left(11 a + 17\right)\cdot 19^{3} + \left(6 a + 12\right)\cdot 19^{4} +O\left(19^{ 5 }\right)$ |
| $r_{ 6 }$ |
$=$ |
$ 10 + 15\cdot 19^{2} + 10\cdot 19^{4} +O\left(19^{ 5 }\right)$ |
Generators of the action on the roots
$r_1, \ldots, r_{ 6 }$
| Cycle notation |
| $(1,2,3,4,6,5)$ |
| $(1,3)(2,4)(5,6)$ |
Character values on conjugacy classes
| Size | Order | Action on
$r_1, \ldots, r_{ 6 }$
| Character values |
| | |
$c1$ |
| $1$ |
$1$ |
$()$ |
$5$ |
| $10$ |
$2$ |
$(1,3)(2,4)(5,6)$ |
$1$ |
| $15$ |
$2$ |
$(1,5)(4,6)$ |
$1$ |
| $20$ |
$3$ |
$(1,3,6)(2,4,5)$ |
$-1$ |
| $30$ |
$4$ |
$(1,6,5,4)$ |
$-1$ |
| $24$ |
$5$ |
$(1,4,3,2,6)$ |
$0$ |
| $20$ |
$6$ |
$(1,2,3,4,6,5)$ |
$1$ |
The blue line marks the conjugacy class containing complex conjugation.
