Properties

Label 3.12.18.68
Base \(\Q_{3}\)
Degree \(12\)
e \(6\)
f \(2\)
c \(18\)
Galois group $C_3 : C_4$ (as 12T5)

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Defining polynomial

\( x^{12} + 21 x^{11} - 21 x^{10} + 21 x^{9} - 27 x^{7} + 15 x^{6} + 18 x^{5} - 27 x^{4} + 27 x^{3} + 27 x^{2} + 27 x - 36 \)

Invariants

Base field: $\Q_{3}$
Degree $d$ : $12$
Ramification exponent $e$ : $6$
Residue field degree $f$ : $2$
Discriminant exponent $c$ : $18$
Discriminant root field: $\Q_{3}(\sqrt{*})$
Root number: $-1$
$|\Gal(K/\Q_{ 3 })|$: $12$
This field is Galois over $\Q_{3}$.

Intermediate fields

$\Q_{3}(\sqrt{*})$, 3.3.4.4 x3, 3.4.2.2, 3.6.8.5

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

Unramified/totally ramified tower

Unramified subfield:$\Q_{3}(\sqrt{*})$ $\cong \Q_{3}(t)$ where $t$ is a root of \( x^{2} - x + 2 \)
Relative Eisenstein polynomial:$ x^{6} + \left(-12 t + 12\right) x^{5} + \left(-12 t - 9\right) x^{4} + \left(12 t + 9\right) x^{3} - 9 x^{2} - 9 x - 6 t - 12 \in\Q_{3}(t)[x]$

Invariants of the Galois closure

Galois group:$C_3:C_4$ (as 12T5)
Inertia group:Intransitive group isomorphic to $C_6$
Unramified degree:$2$
Tame degree:$2$
Wild slopes:[2]
Galois mean slope:$3/2$
Galois splitting model:$x^{12} - 57 x^{10} - 92 x^{9} + 990 x^{8} + 2802 x^{7} - 4810 x^{6} - 25443 x^{5} - 15819 x^{4} + 57737 x^{3} + 116550 x^{2} + 83475 x + 21625$