Defining polynomial
| \( x^{14} + 2 x^{12} + 4 x^{11} - 2 x^{10} + 2 x^{8} + 4 x^{6} + 4 x^{5} + 4 x^{2} - 2 \) |
Invariants
| Base field: | $\Q_{2}$ |
| Degree $d$ : | $14$ |
| Ramification exponent $e$ : | $14$ |
| Residue field degree $f$ : | $1$ |
| Discriminant exponent $c$ : | $27$ |
| Discriminant root field: | $\Q_{2}(\sqrt{2})$ |
| Root number: | $1$ |
| $|\Aut(K/\Q_{ 2 })|$: | $2$ |
| This field is not Galois over $\Q_{2}$. | |
Intermediate fields
| $\Q_{2}(\sqrt{2})$, 2.7.6.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Unramified/totally ramified tower
| Unramified subfield: | $\Q_{2}$ |
| Relative Eisenstein polynomial: | \( x^{14} + 2 x^{12} + 4 x^{11} - 2 x^{10} + 2 x^{8} + 4 x^{6} + 4 x^{5} + 4 x^{2} - 2 \) |
Invariants of the Galois closure
| Galois group: | $C_2\times C_7:C_3$ (as 14T5) |
| Inertia group: | $C_{14}$ |
| Unramified degree: | $3$ |
| Tame degree: | $7$ |
| Wild slopes: | [3] |
| Galois mean slope: | $27/14$ |
| Galois splitting model: | $x^{14} + 28 x^{12} + 308 x^{10} + 1680 x^{8} + 4704 x^{6} + 6272 x^{4} + 3136 x^{2} + 504$ |