Properties

Label 2.6.9.6
Base \(\Q_{2}\)
Degree \(6\)
e \(2\)
f \(3\)
c \(9\)
Galois group $A_4\times C_2$ (as 6T6)

Related objects

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Defining polynomial

\( x^{6} + 4 x^{2} + 8 \)

Invariants

Base field: $\Q_{2}$
Degree $d$ : $6$
Ramification exponent $e$ : $2$
Residue field degree $f$ : $3$
Discriminant exponent $c$ : $9$
Discriminant root field: $\Q_{2}(\sqrt{-2})$
Root number: $i$
$|\Aut(K/\Q_{ 2 })|$: $2$
This field is not Galois over $\Q_{2}$.

Intermediate fields

2.3.0.1

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

Unramified/totally ramified tower

Unramified subfield:2.3.0.1 $\cong \Q_{2}(t)$ where $t$ is a root of \( x^{3} - x + 1 \)
Relative Eisenstein polynomial:$ x^{2} - 2 t \in\Q_{2}(t)[x]$

Invariants of the Galois closure

Galois group:$C_2\times A_4$ (as 6T6)
Inertia group:Intransitive group isomorphic to $C_2^3$
Unramified degree:$3$
Tame degree:$1$
Wild slopes:[2, 2, 3]
Galois mean slope:$9/4$
Galois splitting model:$x^{6} - 12 x^{2} + 8$