Defining polynomial
|
\(x^{12} + 3 x^{10} + 6 x^{8} + 6\)
|
Invariants
| Base field: | $\Q_{3}$ |
| Degree $d$: | $12$ |
| Ramification index $e$: | $12$ |
| Residue field degree $f$: | $1$ |
| Discriminant exponent $c$: | $19$ |
| Discriminant root field: | $\Q_{3}(\sqrt{3\cdot 2})$ |
| Root number: | $i$ |
| $\Aut(K/\Q_{3})$: | $C_2$ |
| This field is not Galois over $\Q_{3}.$ | |
| Visible Artin slopes: | $[2]$ |
| Visible Swan slopes: | $[1]$ |
| Means: | $\langle\frac{2}{3}\rangle$ |
| Rams: | $(4)$ |
| Jump set: | undefined |
| Roots of unity: | $2 = (3 - 1)$ |
Intermediate fields
| $\Q_{3}(\sqrt{3})$, 3.1.4.3a1.2, 3.1.6.9a2.4 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Canonical tower
| Unramified subfield: | $\Q_{3}$ |
| Relative Eisenstein polynomial: |
\( x^{12} + 3 x^{10} + 6 x^{8} + 6 \)
|
Ramification polygon
| Residual polynomials: | $z^9 + z^6 + 1$,$z^2 + 1$ |
| Associated inertia: | $2$,$2$ |
| Indices of inseparability: | $[8, 0]$ |
Invariants of the Galois closure
| Galois degree: | $72$ |
| Galois group: | $C_3:D_{12}$ (as 12T38) |
| Inertia group: | $C_3:C_{12}$ (as 12T19) |
| Wild inertia group: | $C_3^2$ |
| Galois unramified degree: | $2$ |
| Galois tame degree: | $4$ |
| Galois Artin slopes: | $[\frac{3}{2}, 2]$ |
| Galois Swan slopes: | $[\frac{1}{2},1]$ |
| Galois mean slope: | $1.75$ |
| Galois splitting model: | $x^{12} - 2 x^{9} + 36 x^{6} + 28 x^{3} - 2$ |