Defining polynomial
\(x^{12} - 138 x^{6} - 217948\) |
Invariants
Base field: | $\Q_{23}$ |
Degree $d$: | $12$ |
Ramification exponent $e$: | $6$ |
Residue field degree $f$: | $2$ |
Discriminant exponent $c$: | $10$ |
Discriminant root field: | $\Q_{23}$ |
Root number: | $1$ |
$\card{ \Aut(K/\Q_{ 23 }) }$: | $6$ |
This field is not Galois over $\Q_{23}.$ | |
Visible slopes: | None |
Intermediate fields
$\Q_{23}(\sqrt{5})$, $\Q_{23}(\sqrt{23})$, $\Q_{23}(\sqrt{23\cdot 5})$, 23.4.2.1, 23.6.4.2 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Unramified/totally ramified tower
Unramified subfield: | $\Q_{23}(\sqrt{5})$ $\cong \Q_{23}(t)$ where $t$ is a root of \( x^{2} + 21 x + 5 \) |
Relative Eisenstein polynomial: | \( x^{6} + 46 t + 414 \) $\ \in\Q_{23}(t)[x]$ |
Ramification polygon
Residual polynomials: | $z^{5} + 6z^{4} + 15z^{3} + 20z^{2} + 15z + 6$ |
Associated inertia: | $1$ |
Indices of inseparability: | $[0]$ |
Invariants of the Galois closure
Galois group: | $C_6\times S_3$ (as 12T18) |
Inertia group: | Intransitive group isomorphic to $C_6$ |
Wild inertia group: | $C_1$ |
Unramified degree: | $6$ |
Tame degree: | $6$ |
Wild slopes: | None |
Galois mean slope: | $5/6$ |
Galois splitting model: | $x^{12} + 299 x^{6} + 25921$ |