Properties

Label 17.12.1.0a1.1
Base \(\Q_{17}\)
Degree \(12\)
e \(1\)
f \(12\)
c \(0\)
Galois group $C_{12}$ (as 12T1)

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Defining polynomial

Copy content comment:Define the p-adic field
 
Copy content sage:Prec = 100 # Default precision of 100 Q17 = Qp(17, Prec); x = polygen(QQ) K.<a> = Q17.extension(x^12 + x^8 + 4*x^7 + 14*x^6 + 14*x^5 + 13*x^4 + 6*x^3 + 14*x^2 + 9*x + 3)
 
Copy content magma:Prec := 100; // Default precision of 100 Q17 := pAdicField(17, Prec); K := LocalField(Q17, Polynomial(Q17, [3, 9, 14, 6, 13, 14, 14, 4, 1, 0, 0, 0, 1]));
 

\(x^{12} + x^{8} + 4 x^{7} + 14 x^{6} + 14 x^{5} + 13 x^{4} + 6 x^{3} + 14 x^{2} + 9 x + 3\) Copy content Toggle raw display

Copy content comment:Defining polynomial
 
Copy content sage:K.defining_polynomial()
 
Copy content magma:DefiningPolynomial(K);
 

Invariants

Base field: $\Q_{17}$
Copy content comment:Base field Qp
 
Copy content sage:K.base()
 
Copy content magma:Q17;
 
Degree $d$: $12$
Copy content comment:Degree over Qp
 
Copy content sage:K.absolute_degree()
 
Copy content magma:Degree(K);
 
Ramification index $e$:$1$
Copy content comment:Ramification index
 
Copy content sage:K.absolute_e()
 
Copy content magma:RamificationIndex(K);
 
Residue field degree $f$:$12$
Copy content comment:Residue field degree (Inertia degree)
 
Copy content sage:K.absolute_f()
 
Copy content magma:InertiaDegree(K);
 
Discriminant exponent $c$:$0$
Copy content comment:Discriminant exponent
 
Copy content magma:Valuation(Discriminant(K));
 
Discriminant root field:$\Q_{17}(\sqrt{3})$
Root number: $1$
$\Aut(K/\Q_{17})$ $=$ $\Gal(K/\Q_{17})$: $C_{12}$
This field is Galois and abelian over $\Q_{17}.$
Visible Artin slopes:$[\ ]$
Visible Swan slopes:$[\ ]$
Means:$\langle\ \rangle$
Rams:$(\ )$
Jump set:undefined
Roots of unity:$582622237229760 = (17^{ 12 } - 1)$
Copy content comment:Roots of unity
 
Copy content sage:len(K.roots_of_unity())
 

Intermediate fields

$\Q_{17}(\sqrt{3})$, 17.3.1.0a1.1, 17.4.1.0a1.1, 17.6.1.0a1.1

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

Canonical tower

Unramified subfield:17.12.1.0a1.1 $\cong \Q_{17}(t)$ where $t$ is a root of \( x^{12} + x^{8} + 4 x^{7} + 14 x^{6} + 14 x^{5} + 13 x^{4} + 6 x^{3} + 14 x^{2} + 9 x + 3 \) Copy content Toggle raw display
Copy content comment:Maximal unramified subextension
 
Copy content sage:K.maximal_unramified_subextension()
 
Relative Eisenstein polynomial: \( x - 17 \) $\ \in\Q_{17}(t)[x]$ Copy content Toggle raw display

Ramification polygon

The ramification polygon is trivial for unramified extensions.

Invariants of the Galois closure

Galois degree: $12$
Galois group: $C_{12}$ (as 12T1)
Inertia group: trivial
Wild inertia group: $C_1$
Galois unramified degree: $12$
Galois tame degree: $1$
Galois Artin slopes: $[\ ]$
Galois Swan slopes: $[\ ]$
Galois mean slope: $0.0$
Galois splitting model:$x^{12} - x^{11} + 2 x^{10} + 20 x^{9} - 13 x^{8} + 19 x^{7} + 85 x^{6} - 51 x^{5} + 94 x^{4} + 2 x^{3} - 13 x^{2} + 77 x + 47$