Defining polynomial
\(x^{8} + 3 x^{4} + 72 x^{3} + 116 x^{2} + 104 x + 2\) |
Invariants
Base field: | $\Q_{131}$ |
Degree $d$: | $8$ |
Ramification exponent $e$: | $1$ |
Residue field degree $f$: | $8$ |
Discriminant exponent $c$: | $0$ |
Discriminant root field: | $\Q_{131}(\sqrt{2})$ |
Root number: | $1$ |
$\card{ \Gal(K/\Q_{ 131 }) }$: | $8$ |
This field is Galois and abelian over $\Q_{131}.$ | |
Visible slopes: | None |
Intermediate fields
$\Q_{131}(\sqrt{2})$, 131.4.0.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Unramified/totally ramified tower
Unramified subfield: | 131.8.0.1 $\cong \Q_{131}(t)$ where $t$ is a root of \( x^{8} + 3 x^{4} + 72 x^{3} + 116 x^{2} + 104 x + 2 \) |
Relative Eisenstein polynomial: | \( x - 131 \) $\ \in\Q_{131}(t)[x]$ |
Ramification polygon
The ramification polygon is trivial for unramified extensions.