Basic invariants
Galois action
Roots of defining polynomial
The roots of $f$ are computed in an extension of $\Q_{ 13 }$ to precision 5.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 13 }$: $ x^{2} + 12 x + 2 $
Roots:
| $r_{ 1 }$ |
$=$ |
$ 2 a + 12 + \left(8 a + 6\right)\cdot 13 + \left(10 a + 6\right)\cdot 13^{2} + \left(5 a + 1\right)\cdot 13^{3} + \left(7 a + 12\right)\cdot 13^{4} +O\left(13^{ 5 }\right)$ |
| $r_{ 2 }$ |
$=$ |
$ 4 a + 8 + \left(7 a + 7\right)\cdot 13 + \left(2 a + 7\right)\cdot 13^{2} + \left(8 a + 6\right)\cdot 13^{3} + \left(7 a + 3\right)\cdot 13^{4} +O\left(13^{ 5 }\right)$ |
| $r_{ 3 }$ |
$=$ |
$ 11 a + 1 + 4 a\cdot 13 + \left(2 a + 9\right)\cdot 13^{2} + \left(7 a + 9\right)\cdot 13^{3} + 5 a\cdot 13^{4} +O\left(13^{ 5 }\right)$ |
| $r_{ 4 }$ |
$=$ |
$ 9 a + 12 + \left(5 a + 10\right)\cdot 13 + \left(10 a + 2\right)\cdot 13^{2} + \left(4 a + 12\right)\cdot 13^{3} + \left(5 a + 2\right)\cdot 13^{4} +O\left(13^{ 5 }\right)$ |
| $r_{ 5 }$ |
$=$ |
$ 7 + 9\cdot 13^{3} + 6\cdot 13^{4} +O\left(13^{ 5 }\right)$ |
Generators of the action on the roots
$r_1, \ldots, r_{ 5 }$
| Cycle notation |
| $(1,3)(2,4)$ |
| $(1,5)(2,3)$ |
Character values on conjugacy classes
| Size | Order | Action on
$r_1, \ldots, r_{ 5 }$
| Character values |
| | |
$c1$ |
$c2$ |
| $1$ |
$1$ |
$()$ |
$2$ |
$2$ |
| $5$ |
$2$ |
$(1,3)(2,4)$ |
$0$ |
$0$ |
| $2$ |
$5$ |
$(1,2,4,3,5)$ |
$\zeta_{5}^{3} + \zeta_{5}^{2}$ |
$-\zeta_{5}^{3} - \zeta_{5}^{2} - 1$ |
| $2$ |
$5$ |
$(1,4,5,2,3)$ |
$-\zeta_{5}^{3} - \zeta_{5}^{2} - 1$ |
$\zeta_{5}^{3} + \zeta_{5}^{2}$ |
The blue line marks the conjugacy class containing complex conjugation.
