Basic invariants
Dimension: | $1$ |
Group: | $C_8$ |
Conductor: | \(97\) |
Artin field: | Galois closure of 8.8.80798284478113.1 |
Galois orbit size: | $4$ |
Smallest permutation container: | $C_8$ |
Parity: | even |
Dirichlet character: | \(\chi_{97}(64,\cdot)\) |
Projective image: | $C_1$ |
Projective field: | Galois closure of \(\Q\) |
Defining polynomial
$f(x)$ | $=$ | \( x^{8} - x^{7} - 42x^{6} + 59x^{5} + 497x^{4} - 719x^{3} - 1792x^{2} + 2295x + 193 \) . |
The roots of $f$ are computed in $\Q_{ 61 }$ to precision 5.
Roots:
$r_{ 1 }$ | $=$ |
\( 5 + 30\cdot 61 + 11\cdot 61^{2} + 10\cdot 61^{3} + 56\cdot 61^{4} +O(61^{5})\)
$r_{ 2 }$ |
$=$ |
\( 9 + 8\cdot 61^{2} + 57\cdot 61^{3} + 26\cdot 61^{4} +O(61^{5})\)
| $r_{ 3 }$ |
$=$ |
\( 13 + 3\cdot 61 + 34\cdot 61^{2} + 52\cdot 61^{3} + 10\cdot 61^{4} +O(61^{5})\)
| $r_{ 4 }$ |
$=$ |
\( 19 + 4\cdot 61^{2} + 23\cdot 61^{3} + 36\cdot 61^{4} +O(61^{5})\)
| $r_{ 5 }$ |
$=$ |
\( 28 + 3\cdot 61 + 25\cdot 61^{2} + 38\cdot 61^{3} + 5\cdot 61^{4} +O(61^{5})\)
| $r_{ 6 }$ |
$=$ |
\( 33 + 59\cdot 61 + 24\cdot 61^{2} + 14\cdot 61^{3} + 52\cdot 61^{4} +O(61^{5})\)
| $r_{ 7 }$ |
$=$ |
\( 34 + 24\cdot 61 + 17\cdot 61^{2} + 13\cdot 61^{3} + 57\cdot 61^{4} +O(61^{5})\)
| $r_{ 8 }$ |
$=$ |
\( 43 + 58\cdot 61^{2} + 34\cdot 61^{3} + 59\cdot 61^{4} +O(61^{5})\)
| |
Generators of the action on the roots $r_1, \ldots, r_{ 8 }$
Cycle notation |
Character values on conjugacy classes
Size | Order | Action on $r_1, \ldots, r_{ 8 }$ | Character value |
$1$ | $1$ | $()$ | $1$ |
$1$ | $2$ | $(1,7)(2,4)(3,8)(5,6)$ | $-1$ |
$1$ | $4$ | $(1,8,7,3)(2,5,4,6)$ | $\zeta_{8}^{2}$ |
$1$ | $4$ | $(1,3,7,8)(2,6,4,5)$ | $-\zeta_{8}^{2}$ |
$1$ | $8$ | $(1,2,8,5,7,4,3,6)$ | $-\zeta_{8}$ |
$1$ | $8$ | $(1,5,3,2,7,6,8,4)$ | $-\zeta_{8}^{3}$ |
$1$ | $8$ | $(1,4,8,6,7,2,3,5)$ | $\zeta_{8}$ |
$1$ | $8$ | $(1,6,3,4,7,5,8,2)$ | $\zeta_{8}^{3}$ |
The blue line marks the conjugacy class containing complex conjugation.