Basic invariants
| Dimension: | $1$ |
| Group: | $C_4$ |
| Conductor: | \(1020\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \cdot 17 \) |
| Artin field: | Galois closure of 4.0.88434000.2 |
| Galois orbit size: | $2$ |
| Smallest permutation container: | $C_4$ |
| Parity: | odd |
| Dirichlet character: | \(\chi_{1020}(1007,\cdot)\) |
| Projective image: | $C_1$ |
| Projective field: | Galois closure of \(\Q\) |
Defining polynomial
| $f(x)$ | $=$ |
\( x^{4} + 255x^{2} + 6885 \)
|
The roots of $f$ are computed in $\Q_{ 23 }$ to precision 7.
Roots:
| $r_{ 1 }$ | $=$ |
\( 7 + 9\cdot 23 + 10\cdot 23^{2} + 17\cdot 23^{3} + 5\cdot 23^{4} + 22\cdot 23^{5} + 14\cdot 23^{6} +O(23^{7})\)
|
| $r_{ 2 }$ | $=$ |
\( 8 + 17\cdot 23 + 13\cdot 23^{2} + 19\cdot 23^{3} + 21\cdot 23^{4} + 19\cdot 23^{5} + 15\cdot 23^{6} +O(23^{7})\)
|
| $r_{ 3 }$ | $=$ |
\( 15 + 5\cdot 23 + 9\cdot 23^{2} + 3\cdot 23^{3} + 23^{4} + 3\cdot 23^{5} + 7\cdot 23^{6} +O(23^{7})\)
|
| $r_{ 4 }$ | $=$ |
\( 16 + 13\cdot 23 + 12\cdot 23^{2} + 5\cdot 23^{3} + 17\cdot 23^{4} + 8\cdot 23^{6} +O(23^{7})\)
|
Generators of the action on the roots $r_1, \ldots, r_{ 4 }$
| Cycle notation |
Character values on conjugacy classes
| Size | Order | Action on $r_1, \ldots, r_{ 4 }$ | Character value |
| $1$ | $1$ | $()$ | $1$ |
| $1$ | $2$ | $(1,4)(2,3)$ | $-1$ |
| $1$ | $4$ | $(1,2,4,3)$ | $-\zeta_{4}$ |
| $1$ | $4$ | $(1,3,4,2)$ | $\zeta_{4}$ |
The blue line marks the conjugacy class containing complex conjugation.