Defining polynomial
| \( x^{8} - 61 x^{4} + 59536 \) |
Invariants
| Base field: | $\Q_{61}$ |
| Degree $d$ : | $8$ |
| Ramification exponent $e$ : | $4$ |
| Residue field degree $f$ : | $2$ |
| Discriminant exponent $c$ : | $6$ |
| Discriminant root field: | $\Q_{61}$ |
| Root number: | $-1$ |
| $|\Gal(K/\Q_{ 61 })|$: | $8$ |
| This field is Galois and abelian over $\Q_{61}$. | |
Intermediate fields
| $\Q_{61}(\sqrt{*})$, $\Q_{61}(\sqrt{61})$, $\Q_{61}(\sqrt{61*})$, 61.4.2.1, 61.4.3.1, 61.4.3.2 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Unramified/totally ramified tower
| Unramified subfield: | $\Q_{61}(\sqrt{*})$ $\cong \Q_{61}(t)$ where $t$ is a root of \( x^{2} - x + 2 \) |
| Relative Eisenstein polynomial: | $ x^{4} - 61 t^{4} \in\Q_{61}(t)[x]$ |
Invariants of the Galois closure
| Galois group: | $C_2\times C_4$ (as 8T2) |
| Inertia group: | Intransitive group isomorphic to $C_4$ |
| Unramified degree: | $2$ |
| Tame degree: | $4$ |
| Wild slopes: | None |
| Galois mean slope: | $3/4$ |
| Galois splitting model: | Not computed |