Defining polynomial
|
\(x^{4} - 235711 x^{3} - 1406251373 x^{2} - 129486879 x + 136806\)
|
Invariants
| Base field: | $\Q_{151}$ |
| Degree $d$: | $4$ |
| Ramification exponent $e$: | $2$ |
| Residue field degree $f$: | $2$ |
| Discriminant exponent $c$: | $2$ |
| Discriminant root field: | $\Q_{151}(\sqrt{3})$ |
| Root number: | $-1$ |
| $\card{ \Gal(K/\Q_{ 151 }) }$: | $4$ |
| This field is Galois and abelian over $\Q_{151}.$ | |
| Visible slopes: | None |
Intermediate fields
| $\Q_{151}(\sqrt{3})$ |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Unramified/totally ramified tower
| Unramified subfield: | $\Q_{151}(\sqrt{3})$ $\cong \Q_{151}(t)$ where $t$ is a root of
\( x^{2} + 149 x + 6 \)
|
| Relative Eisenstein polynomial: |
\( x^{2} + \left(1661 t + 5889\right) x + 151 t \)
$\ \in\Q_{151}(t)[x]$
|
Ramification polygon
| Residual polynomials: | $z + 2$ |
| Associated inertia: | $1$ |
| Indices of inseparability: | $[0]$ |
Invariants of the Galois closure
| Galois group: | $C_4$ (as 4T1) |
| Inertia group: | Intransitive group isomorphic to $C_2$ |
| Wild inertia group: | $C_1$ |
| Unramified degree: | $2$ |
| Tame degree: | $2$ |
| Wild slopes: | None |
| Galois mean slope: | $1/2$ |
| Galois splitting model: | $x^{4} - x^{3} - 492 x^{2} - 490 x + 18281$ |