Defining polynomial
| \( x^{9} - 49 x^{3} + 686 \) |
Invariants
| Base field: | $\Q_{7}$ |
| Degree $d$ : | $9$ |
| Ramification exponent $e$ : | $3$ |
| Residue field degree $f$ : | $3$ |
| Discriminant exponent $c$ : | $6$ |
| Discriminant root field: | $\Q_{7}$ |
| Root number: | $1$ |
| $|\Gal(K/\Q_{ 7 })|$: | $9$ |
| This field is Galois and abelian over $\Q_{7}$. | |
Intermediate fields
| 7.3.0.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Unramified/totally ramified tower
| Unramified subfield: | 7.3.0.1 $\cong \Q_{7}(t)$ where $t$ is a root of \( x^{3} - x + 2 \) |
| Relative Eisenstein polynomial: | $ x^{3} - 7 t \in\Q_{7}(t)[x]$ |
Invariants of the Galois closure
| Galois group: | $C_9$ (as 9T1) |
| Inertia group: | Intransitive group isomorphic to $C_3$ |
| Unramified degree: | $3$ |
| Tame degree: | $3$ |
| Wild slopes: | None |
| Galois mean slope: | $2/3$ |
| Galois splitting model: | $x^{9} - 63 x^{7} + 1323 x^{5} - 10290 x^{3} + 21609 x - 12691$ |