Defining polynomial
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\(x^{12} + 242 x^{4} - 11979\)
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Invariants
| Base field: | $\Q_{11}$ |
| Degree $d$: | $12$ |
| Ramification exponent $e$: | $4$ |
| Residue field degree $f$: | $3$ |
| Discriminant exponent $c$: | $9$ |
| Discriminant root field: | $\Q_{11}(\sqrt{11\cdot 2})$ |
| Root number: | $-i$ |
| $\card{ \Aut(K/\Q_{ 11 }) }$: | $6$ |
| This field is not Galois over $\Q_{11}.$ | |
| Visible slopes: | None |
Intermediate fields
| $\Q_{11}(\sqrt{11})$, 11.3.0.1, 11.4.3.2, 11.6.3.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Unramified/totally ramified tower
| Unramified subfield: | 11.3.0.1 $\cong \Q_{11}(t)$ where $t$ is a root of
\( x^{3} + 2 x + 9 \)
|
| Relative Eisenstein polynomial: |
\( x^{4} + 11 t \)
$\ \in\Q_{11}(t)[x]$
|
Ramification polygon
| Residual polynomials: | $z^{3} + 4z^{2} + 6z + 4$ |
| Associated inertia: | $2$ |
| Indices of inseparability: | $[0]$ |
Invariants of the Galois closure
| Galois group: | $C_3\times D_4$ (as 12T14) |
| Inertia group: | Intransitive group isomorphic to $C_4$ |
| Wild inertia group: | $C_1$ |
| Unramified degree: | $6$ |
| Tame degree: | $4$ |
| Wild slopes: | None |
| Galois mean slope: | $3/4$ |
| Galois splitting model: |
$x^{12} - 2 x^{11} - 24 x^{10} + 41 x^{9} + 168 x^{8} - 244 x^{7} - 467 x^{6} + 510 x^{5} + 597 x^{4} - 361 x^{3} - 200 x^{2} - 7 x - 41$
|