Properties

Label 2.12.28.191
Base \(\Q_{2}\)
Degree \(12\)
e \(12\)
f \(1\)
c \(28\)
Galois group $C_2\times C_2^2:S_4$ (as 12T100)

Related objects

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Defining polynomial

\( x^{12} - 2 x^{10} + 2 x^{8} + 4 x^{5} + 4 x^{4} + 4 x^{2} - 2 \)

Invariants

Base field: $\Q_{2}$
Degree $d$ : $12$
Ramification exponent $e$ : $12$
Residue field degree $f$ : $1$
Discriminant exponent $c$ : $28$
Discriminant root field: $\Q_{2}(\sqrt{*})$
Root number: $-1$
$|\Aut(K/\Q_{ 2 })|$: $2$
This field is not Galois over $\Q_{2}$.

Intermediate fields

2.3.2.1, 2.6.10.1

Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.

Unramified/totally ramified tower

Unramified subfield:$\Q_{2}$
Relative Eisenstein polynomial:\( x^{12} - 2 x^{10} + 2 x^{8} + 4 x^{5} + 4 x^{4} + 4 x^{2} - 2 \)

Invariants of the Galois closure

Galois group:$C_2\times C_2^2:S_4$ (as 12T100)
Inertia group:12T56
Unramified degree:$2$
Tame degree:$3$
Wild slopes:[4/3, 4/3, 8/3, 8/3, 3]
Galois mean slope:$127/48$
Galois splitting model:$x^{12} - 10 x^{10} - 8 x^{9} + 34 x^{8} + 56 x^{7} - 52 x^{6} - 268 x^{5} - 464 x^{4} - 648 x^{3} - 756 x^{2} - 536 x - 158$