Properties

Label 3.15.20.99
Base \(\Q_{3}\)
Degree \(15\)
e \(3\)
f \(5\)
c \(20\)
Galois group $C_{15}$ (as 15T1)

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Defining polynomial

\(x^{15} + 30 x^{14} + 360 x^{13} + 2220 x^{12} + 7920 x^{11} + 20736 x^{10} + 54576 x^{9} + 127008 x^{8} + 295488 x^{7} + 682614 x^{6} + 1099656 x^{5} + 3298968 x^{4} + 2128842 x^{3} + 12773052 x^{2} + 9410175\) Copy content Toggle raw display

Invariants

Base field: $\Q_{3}$
Degree $d$: $15$
Ramification exponent $e$: $3$
Residue field degree $f$: $5$
Discriminant exponent $c$: $20$
Discriminant root field: $\Q_{3}$
Root number: $1$
$\card{ \Gal(K/\Q_{ 3 }) }$: $15$
This field is Galois and abelian over $\Q_{3}.$
Visible slopes:$[2]$

Intermediate fields

3.3.4.3, 3.5.0.1

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

Unramified/totally ramified tower

Unramified subfield:3.5.0.1 $\cong \Q_{3}(t)$ where $t$ is a root of \( x^{5} + 2 x + 1 \) Copy content Toggle raw display
Relative Eisenstein polynomial: \( x^{3} + 6 x^{2} + 18 t^{3} + 9 t + 12 \) $\ \in\Q_{3}(t)[x]$ Copy content Toggle raw display

Ramification polygon

Residual polynomials:$z^{2} + 2$
Associated inertia:$1$
Indices of inseparability:$[2, 0]$

Invariants of the Galois closure

Galois group:$C_{15}$ (as 15T1)
Inertia group:Intransitive group isomorphic to $C_3$
Wild inertia group:$C_3$
Unramified degree:$5$
Tame degree:$1$
Wild slopes:$[2]$
Galois mean slope:$4/3$
Galois splitting model:$x^{15} - 3 x^{14} - 114 x^{13} + 130 x^{12} + 5361 x^{11} + 3249 x^{10} - 120562 x^{9} - 259107 x^{8} + 1090119 x^{7} + 4464049 x^{6} + 785697 x^{5} - 20966655 x^{4} - 43817519 x^{3} - 38133582 x^{2} - 14510214 x - 1701701$