Defining polynomial
| \( x^{12} + 8 x^{11} + 4 x^{10} + 4 x^{9} + 4 x^{8} - 4 x^{6} + 8 x^{5} + 8 x^{4} + 2 \) |
Invariants
| Base field: | $\Q_{2}$ |
| Degree $d$ : | $12$ |
| Ramification exponent $e$ : | $12$ |
| Residue field degree $f$ : | $1$ |
| Discriminant exponent $c$ : | $32$ |
| Discriminant root field: | $\Q_{2}(\sqrt{-*})$ |
| Root number: | $i$ |
| $|\Aut(K/\Q_{ 2 })|$: | $2$ |
| This field is not Galois over $\Q_{2}$. | |
Intermediate fields
| $\Q_{2}(\sqrt{-2})$, 2.3.2.1, 2.4.10.8, 2.6.11.9 |
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: | \( x^{12} - 16 x^{11} + 124 x^{10} - 868 x^{9} + 6108 x^{8} - 31888 x^{7} + 94348 x^{6} - 110088 x^{5} - 99112 x^{4} + 402832 x^{3} - 514288 x^{2} + 304768 x - 67646 \) |
Invariants of the Galois closure
| Galois group: | $S_3\times D_4$ (as 12T28) |
| Inertia group: | $D_4 \times C_3$ |
| Unramified degree: | $2$ |
| Tame degree: | $3$ |
| Wild slopes: | [2, 3, 7/2] |
| Galois mean slope: | $17/6$ |
| Galois splitting model: | $x^{12} + 6 x^{10} - 12 x^{9} + 21 x^{8} - 48 x^{7} + 92 x^{6} - 120 x^{5} + 167 x^{4} - 208 x^{3} + 214 x^{2} - 140 x + 49$ |