Defining polynomial
| \( x^{14} - 2 x^{13} + 2 x^{11} + 4 x^{10} + 2 x^{9} - 2 x^{8} + 4 x^{7} + 2 x^{6} + 4 x^{5} - 2 x^{4} - 2 x^{2} + 4 x - 2 \) |
Invariants
| Base field: | $\Q_{2}$ |
| Degree $d$ : | $14$ |
| Ramification exponent $e$ : | $14$ |
| Residue field degree $f$ : | $1$ |
| Discriminant exponent $c$ : | $22$ |
| Discriminant root field: | $\Q_{2}(\sqrt{-1})$ |
| Root number: | $-i$ |
| $|\Aut(K/\Q_{ 2 })|$: | $2$ |
| This field is not Galois over $\Q_{2}$. | |
Intermediate fields
| 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: | \( x^{14} - 2 x^{13} + 2 x^{11} + 4 x^{10} + 2 x^{9} - 2 x^{8} + 4 x^{7} + 2 x^{6} + 4 x^{5} - 2 x^{4} - 2 x^{2} + 4 x - 2 \) |
Invariants of the Galois closure
| Galois group: | 14T44 |
| Inertia group: | $C_2 \wr C_7$ |
| Unramified degree: | $3$ |
| Tame degree: | $7$ |
| Wild slopes: | [10/7, 10/7, 10/7, 2, 16/7, 16/7, 16/7] |
| Galois mean slope: | $495/224$ |
| Galois splitting model: | $x^{14} - 21 x^{12} + 91 x^{10} - 154 x^{9} + 147 x^{8} + 2020 x^{7} + 273 x^{6} - 4452 x^{5} - 2303 x^{4} - 28 x^{3} - 357 x^{2} + 42 x - 1$ |