Properties

Label 3.9.16.14
Base \(\Q_{3}\)
Degree \(9\)
e \(9\)
f \(1\)
c \(16\)
Galois group $S_3\times C_3$ (as 9T4)

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Defining polynomial

\(x^{9} + 6 x^{8} + 21\) Copy content Toggle raw display

Invariants

Base field: $\Q_{3}$
Degree $d$: $9$
Ramification exponent $e$: $9$
Residue field degree $f$: $1$
Discriminant exponent $c$: $16$
Discriminant root field: $\Q_{3}(\sqrt{2})$
Root number: $1$
$\card{ \Aut(K/\Q_{ 3 }) }$: $3$
This field is not Galois over $\Q_{3}.$
Visible slopes:$[2, 2]$

Intermediate fields

3.3.4.1, 3.3.4.4

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

Unramified/totally ramified tower

Unramified subfield:$\Q_{3}$
Relative Eisenstein polynomial: \( x^{9} + 6 x^{8} + 21 \) Copy content Toggle raw display

Ramification polygon

Residual polynomials:$z^{8} + 2$
Associated inertia:$2$
Indices of inseparability:$[8, 8, 0]$

Invariants of the Galois closure

Galois group:$C_3\times S_3$ (as 9T4)
Inertia group:$C_3^2$ (as 9T2)
Wild inertia group:$C_3^2$
Unramified degree:$2$
Tame degree:$1$
Wild slopes:$[2, 2]$
Galois mean slope:$16/9$
Galois splitting model:$x^{9} - 3 x^{8} + 3 x^{7} - 27 x^{6} + 129 x^{5} - 327 x^{4} + 447 x^{3} - 300 x^{2} + 84 x - 8$