Defining polynomial
|
\(x^{20} + 83\)
|
Invariants
| Base field: | $\Q_{83}$ |
|
| Degree $d$: | $20$ |
|
| Ramification index $e$: | $20$ |
|
| Residue field degree $f$: | $1$ |
|
| Discriminant exponent $c$: | $19$ |
|
| Discriminant root field: | $\Q_{83}(\sqrt{83})$ | |
| Root number: | $i$ | |
| $\Aut(K/\Q_{83})$: | $C_2$ | |
| This field is not Galois over $\Q_{83}.$ | ||
| Visible Artin slopes: | $[\ ]$ | |
| Visible Swan slopes: | $[\ ]$ | |
| Means: | $\langle\ \rangle$ | |
| Rams: | $(\ )$ | |
| Jump set: | undefined | |
| Roots of unity: | $82 = (83 - 1)$ |
|
Intermediate fields
| $\Q_{83}(\sqrt{83\cdot 2})$, 83.1.4.3a1.1, 83.1.5.4a1.1, 83.1.10.9a1.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
Canonical tower
| Unramified subfield: | $\Q_{83}$ |
|
| Relative Eisenstein polynomial: |
\( x^{20} + 83 \)
|
Ramification polygon
| Residual polynomials: | $z^{19} + 20 z^{18} + 24 z^{17} + 61 z^{16} + 31 z^{15} + 66 z^{14} + 82 z^{13} + 81 z^{12} + 59 z^{11} + 51 z^{10} + 81 z^9 + 51 z^8 + 59 z^7 + 81 z^6 + 82 z^5 + 66 z^4 + 31 z^3 + 61 z^2 + 24 z + 20$ |
| Associated inertia: | $4$ |
| Indices of inseparability: | $[0]$ |
Invariants of the Galois closure
| Galois degree: | $80$ |
| Galois group: | $C_{20}:C_4$ (as 20T18) |
| Inertia group: | $C_{20}$ (as 20T1) |
| Wild inertia group: | $C_1$ |
| Galois unramified degree: | $4$ |
| Galois tame degree: | $20$ |
| Galois Artin slopes: | $[\ ]$ |
| Galois Swan slopes: | $[\ ]$ |
| Galois mean slope: | $0.95$ |
| Galois splitting model: | not computed |