Properties

Label 2.12.20.68
Base \(\Q_{2}\)
Degree \(12\)
e \(12\)
f \(1\)
c \(20\)
Galois group $(C_6\times C_2):C_2$ (as 12T13)

Related objects

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Defining polynomial

\( x^{12} + 2 x^{9} + 2 \)

Invariants

Base field: $\Q_{2}$
Degree $d$ : $12$
Ramification exponent $e$ : $12$
Residue field degree $f$ : $1$
Discriminant exponent $c$ : $20$
Discriminant root field: $\Q_{2}(\sqrt{*})$
Root number: $1$
$|\Aut(K/\Q_{ 2 })|$: $2$
This field is not Galois over $\Q_{2}$.

Intermediate fields

$\Q_{2}(\sqrt{-1})$, 2.3.2.1, 2.4.6.8, 2.6.8.1

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:\( x^{12} + 2 x^{9} + 2 \)

Invariants of the Galois closure

Galois group:$C_3:D_4$ (as 12T13)
Inertia group:$C_6\times C_2$
Unramified degree:$2$
Tame degree:$3$
Wild slopes:[2, 2]
Galois mean slope:$5/3$
Galois splitting model:$x^{12} - 6 x^{11} + 24 x^{10} - 62 x^{9} + 126 x^{8} - 192 x^{7} + 244 x^{6} - 240 x^{5} + 200 x^{4} - 120 x^{3} + 56 x^{2} - 16 x + 2$