Defining polynomial
|
$( x^{4} + 4 x^{2} + 41 x + 7 )^{3} + 71$
|
Invariants
| Base field: | $\Q_{71}$ |
|
| Degree $d$: | $12$ |
|
| Ramification index $e$: | $3$ |
|
| Residue field degree $f$: | $4$ |
|
| Discriminant exponent $c$: | $8$ |
|
| Discriminant root field: | $\Q_{71}(\sqrt{7})$ | |
| Root number: | $1$ | |
| $\Aut(K/\Q_{71})$ $=$ $\Gal(K/\Q_{71})$: | $C_3:C_4$ | |
| This field is Galois over $\Q_{71}.$ | ||
| Visible Artin slopes: | $[\ ]$ | |
| Visible Swan slopes: | $[\ ]$ | |
| Means: | $\langle\ \rangle$ | |
| Rams: | $(\ )$ | |
| Jump set: | undefined | |
| Roots of unity: | $25411680 = (71^{ 4 } - 1)$ |
|
Intermediate fields
| $\Q_{71}(\sqrt{7})$, 71.1.3.2a1.1 x3, 71.4.1.0a1.1, 71.2.3.4a1.2 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Canonical tower
| Unramified subfield: | 71.4.1.0a1.1 $\cong \Q_{71}(t)$ where $t$ is a root of
\( x^{4} + 4 x^{2} + 41 x + 7 \)
|
|
| Relative Eisenstein polynomial: |
\( x^{3} + 71 \)
$\ \in\Q_{71}(t)[x]$
|
Ramification polygon
| Residual polynomials: | $z^2 + 3 z + 3$ |
| Associated inertia: | $1$ |
| Indices of inseparability: | $[0]$ |
Invariants of the Galois closure
| Galois degree: | $12$ |
| Galois group: | $C_3:C_4$ (as 12T5) |
| Inertia group: | Intransitive group isomorphic to $C_3$ |
| Wild inertia group: | $C_1$ |
| Galois unramified degree: | $4$ |
| Galois tame degree: | $3$ |
| Galois Artin slopes: | $[\ ]$ |
| Galois Swan slopes: | $[\ ]$ |
| Galois mean slope: | $0.6666666666666666$ |
| Galois splitting model: | not computed |