Properties

Label 13.1.14.13a1.2
Base \(\Q_{13}\)
Degree \(14\)
e \(14\)
f \(1\)
c \(13\)
Galois group $D_{14}$ (as 14T3)

Related objects

Downloads

Learn more

Show commands: Magma / SageMath

Defining polynomial

Copy content comment:Define the p-adic field
 
Copy content sage:Prec = 100 # Default precision of 100 Q13 = Qp(13, Prec); x = polygen(QQ) K.<a> = Q13.extension(x^14 + 26)
 
Copy content magma:Prec := 100; // Default precision of 100 Q13 := pAdicField(13, Prec); K := LocalField(Q13, Polynomial(Q13, [26, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]));
 

\(x^{14} + 26\) Copy content Toggle raw display

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

Invariants

Base field: $\Q_{13}$
Copy content comment:Base field Qp
 
Copy content sage:K.base()
 
Copy content magma:Q13;
 
Degree $d$: $14$
Copy content comment:Degree over Qp
 
Copy content sage:K.absolute_degree()
 
Copy content magma:Degree(K);
 
Ramification index $e$:$14$
Copy content comment:Ramification index
 
Copy content sage:K.absolute_e()
 
Copy content magma:RamificationIndex(K);
 
Residue field degree $f$:$1$
Copy content comment:Residue field degree (Inertia degree)
 
Copy content sage:K.absolute_f()
 
Copy content magma:InertiaDegree(K);
 
Discriminant exponent $c$:$13$
Copy content comment:Discriminant exponent
 
Copy content magma:Valuation(Discriminant(K));
 
Discriminant root field:$\Q_{13}(\sqrt{13\cdot 2})$
Root number: $1$
$\Aut(K/\Q_{13})$: $C_2$
This field is not Galois over $\Q_{13}.$
Visible Artin slopes:$[\ ]$
Visible Swan slopes:$[\ ]$
Means:$\langle\ \rangle$
Rams:$(\ )$
Jump set:undefined
Roots of unity:$12 = (13 - 1)$
Copy content comment:Roots of unity
 
Copy content sage:len(K.roots_of_unity())
 

Intermediate fields

$\Q_{13}(\sqrt{13\cdot 2})$, 13.1.7.6a1.1

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

Canonical tower

Unramified subfield:$\Q_{13}$
Copy content comment:Maximal unramified subextension
 
Copy content sage:K.maximal_unramified_subextension()
 
Relative Eisenstein polynomial: \( x^{14} + 26 \) Copy content Toggle raw display

Ramification polygon

Residual polynomials:$z^{13} + z^{12} + 1$
Associated inertia:$2$
Indices of inseparability:$[0]$

Invariants of the Galois closure

Galois degree: $28$
Galois group: $D_{14}$ (as 14T3)
Inertia group: $C_{14}$ (as 14T1)
Wild inertia group: $C_1$
Galois unramified degree: $2$
Galois tame degree: $14$
Galois Artin slopes: $[\ ]$
Galois Swan slopes: $[\ ]$
Galois mean slope: $0.9285714285714286$
Galois splitting model:not computed