Properties

Label 71.3.2.3a1.2
Base \(\Q_{71}\)
Degree \(6\)
e \(2\)
f \(3\)
c \(3\)
Galois group $C_6$ (as 6T1)

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Defining polynomial

Copy content comment:Define the p-adic field
 
Copy content sage:Prec = 100 # Default precision of 100 Q71 = Qp(71, Prec); x = polygen(QQ) L.<t> = Q71.extension(x^3 + 4*x + 64) K.<a> = L.extension(x^2 + 71)
 
Copy content magma:Prec := 100; // Default precision of 100 Q71 := pAdicField(71, Prec); K := LocalField(Q71, Polynomial(Q71, [4167, 512, 16, 128, 8, 0, 1]));
 

$( x^{3} + 4 x + 64 )^{2} + 71$ Copy content Toggle raw display

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

Invariants

Base field: $\Q_{71}$
Copy content comment:Base field Qp
 
Copy content sage:K.base()
 
Copy content magma:Q71;
 
Degree $d$: $6$
Copy content comment:Degree over Qp
 
Copy content sage:K.absolute_degree()
 
Copy content magma:Degree(K);
 
Ramification index $e$:$2$
Copy content comment:Ramification index
 
Copy content sage:K.absolute_e()
 
Copy content magma:RamificationIndex(K);
 
Residue field degree $f$:$3$
Copy content comment:Residue field degree (Inertia degree)
 
Copy content sage:K.absolute_f()
 
Copy content magma:InertiaDegree(K);
 
Discriminant exponent $c$:$3$
Copy content comment:Discriminant exponent
 
Copy content magma:Valuation(Discriminant(K));
 
Discriminant root field:$\Q_{71}(\sqrt{71\cdot 7})$
Root number: $-i$
$\Aut(K/\Q_{71})$ $=$ $\Gal(K/\Q_{71})$: $C_6$
This field is Galois and abelian over $\Q_{71}.$
Visible Artin slopes:$[\ ]$
Visible Swan slopes:$[\ ]$
Means:$\langle\ \rangle$
Rams:$(\ )$
Jump set:undefined
Roots of unity:$357910 = (71^{ 3 } - 1)$
Copy content comment:Roots of unity
 
Copy content sage:len(K.roots_of_unity())
 

Intermediate fields

$\Q_{71}(\sqrt{71\cdot 7})$, 71.3.1.0a1.1

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

Canonical tower

Unramified subfield:71.3.1.0a1.1 $\cong \Q_{71}(t)$ where $t$ is a root of \( x^{3} + 4 x + 64 \) Copy content Toggle raw display
Copy content comment:Maximal unramified subextension
 
Copy content sage:K.maximal_unramified_subextension()
 
Relative Eisenstein polynomial: \( x^{2} + 71 \) $\ \in\Q_{71}(t)[x]$ Copy content Toggle raw display

Ramification polygon

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

Invariants of the Galois closure

Galois degree: $6$
Galois group: $C_6$ (as 6T1)
Inertia group: Intransitive group isomorphic to $C_2$
Wild inertia group: $C_1$
Galois unramified degree: $3$
Galois tame degree: $2$
Galois Artin slopes: $[\ ]$
Galois Swan slopes: $[\ ]$
Galois mean slope: $0.5$
Galois splitting model:not computed