Properties

Label 2.1.6.11a1.14
Base \(\Q_{2}\)
Degree \(6\)
e \(6\)
f \(1\)
c \(11\)
Galois group $S_4\times C_2$ (as 6T11)

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Defining polynomial

Copy content comment:Define the p-adic field
 
Copy content sage:Prec = 100 # Default precision of 100 Q2 = Qp(2, Prec); x = polygen(QQ) K.<a> = Q2.extension(x^6 + 4*x^3 + 4*x + 10)
 
Copy content magma:Prec := 100; // Default precision of 100 Q2 := pAdicField(2, Prec); K := LocalField(Q2, Polynomial(Q2, [10, 4, 0, 4, 0, 0, 1]));
 

\(x^{6} + 4 x^{3} + 4 x + 10\) Copy content Toggle raw display

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

Invariants

Base field: $\Q_{2}$
Copy content comment:Base field Qp
 
Copy content sage:K.base()
 
Copy content magma:Q2;
 
Degree $d$: $6$
Copy content comment:Degree over Qp
 
Copy content sage:K.absolute_degree()
 
Copy content magma:Degree(K);
 
Ramification index $e$:$6$
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 $c$:$11$
Copy content comment:Discriminant exponent
 
Copy content magma:Valuation(Discriminant(K));
 
Discriminant root field:$\Q_{2}(\sqrt{-2\cdot 5})$
Root number: $i$
$\Aut(K/\Q_{2})$: $C_2$
This field is not Galois over $\Q_{2}.$
Visible Artin slopes:$[3]$
Visible Swan slopes:$[2]$
Means:$\langle1\rangle$
Rams:$(6)$
Jump set:$[3, 9]$
Roots of unity:$2$
Copy content comment:Roots of unity
 
Copy content sage:len(K.roots_of_unity())
 

Intermediate fields

2.1.3.2a1.1

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

Canonical tower

Unramified subfield:$\Q_{2}$
Copy content comment:Maximal unramified subextension
 
Copy content sage:K.maximal_unramified_subextension()
 
Relative Eisenstein polynomial: \( x^{6} + 4 x^{3} + 4 x + 10 \) Copy content Toggle raw display

Ramification polygon

Residual polynomials:$z^4 + z^2 + 1$,$z + 1$
Associated inertia:$2$,$1$
Indices of inseparability:$[6, 0]$

Invariants of the Galois closure

Galois degree: $48$
Galois group: $C_2\times S_4$ (as 6T11)
Inertia group: $C_2\times A_4$ (as 6T6)
Wild inertia group: $C_2^3$
Galois unramified degree: $2$
Galois tame degree: $3$
Galois Artin slopes: $[\frac{8}{3}, \frac{8}{3}, 3]$
Galois Swan slopes: $[\frac{5}{3},\frac{5}{3},2]$
Galois mean slope: $2.5833333333333335$
Galois splitting model: $x^{6} + 2 x^{4} + 2 x^{2} + 10$ Copy content Toggle raw display