Defining polynomial
|
\(x^{4} + 20\)
|
Invariants
| Base field: | $\Q_{5}$ |
| Degree $d$: | $4$ |
| Ramification exponent $e$: | $4$ |
| Residue field degree $f$: | $1$ |
| Discriminant exponent $c$: | $3$ |
| Discriminant root field: | $\Q_{5}(\sqrt{5})$ |
| Root number: | $-1$ |
| $\card{ \Gal(K/\Q_{ 5 }) }$: | $4$ |
| This field is Galois and abelian over $\Q_{5}.$ | |
| Visible slopes: | None |
Intermediate fields
| $\Q_{5}(\sqrt{5})$ |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Unramified/totally ramified tower
| Unramified subfield: | $\Q_{5}$ |
| Relative Eisenstein polynomial: |
\( x^{4} + 20 \)
|
Ramification polygon
| Residual polynomials: | $z^{3} + 4z^{2} + z + 4$ |
| Associated inertia: | $1$ |
| Indices of inseparability: | $[0]$ |