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