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