Properties

Label 11.1.10.9a1.5
Base \(\Q_{11}\)
Degree \(10\)
e \(10\)
f \(1\)
c \(9\)
Galois group $C_{10}$ (as 10T1)

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Defining polynomial

Copy content comment:Define the p-adic field
 
Copy content sage:Prec = 100 # Default precision of 100 Q11 = Qp(11, Prec); x = polygen(QQ) K.<a> = Q11.extension(x^10 + 55)
 
Copy content magma:Prec := 100; // Default precision of 100 Q11 := pAdicField(11, Prec); K := LocalField(Q11, Polynomial(Q11, [55, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]));
 

\(x^{10} + 55\) Copy content Toggle raw display

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

Invariants

Base field: $\Q_{11}$
Copy content comment:Base field Qp
 
Copy content sage:K.base()
 
Copy content magma:Q11;
 
Degree $d$: $10$
Copy content comment:Degree over Qp
 
Copy content sage:K.absolute_degree()
 
Copy content magma:Degree(K);
 
Ramification index $e$:$10$
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 $c$:$9$
Copy content comment:Discriminant exponent
 
Copy content magma:Valuation(Discriminant(K));
 
Discriminant root field:$\Q_{11}(\sqrt{11\cdot 2})$
Root number: $i$
$\Aut(K/\Q_{11})$ $=$ $\Gal(K/\Q_{11})$: $C_{10}$
This field is Galois and abelian over $\Q_{11}.$
Visible Artin slopes:$[\ ]$
Visible Swan slopes:$[\ ]$
Means:$\langle\ \rangle$
Rams:$(\ )$
Jump set:undefined
Roots of unity:$10 = (11 - 1)$
Copy content comment:Roots of unity
 
Copy content sage:len(K.roots_of_unity())
 

Intermediate fields

$\Q_{11}(\sqrt{11\cdot 2})$, 11.1.5.4a1.4

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

Canonical tower

Unramified subfield:$\Q_{11}$
Copy content comment:Maximal unramified subextension
 
Copy content sage:K.maximal_unramified_subextension()
 
Relative Eisenstein polynomial: \( x^{10} + 55 \) Copy content Toggle raw display

Ramification polygon

Residual polynomials:$z^9 + 10 z^8 + z^7 + 10 z^6 + z^5 + 10 z^4 + z^3 + 10 z^2 + z + 10$
Associated inertia:$1$
Indices of inseparability:$[0]$

Invariants of the Galois closure

Galois degree: $10$
Galois group: $C_{10}$ (as 10T1)
Inertia group: $C_{10}$ (as 10T1)
Wild inertia group: $C_1$
Galois unramified degree: $1$
Galois tame degree: $10$
Galois Artin slopes: $[\ ]$
Galois Swan slopes: $[\ ]$
Galois mean slope: $0.9$
Galois splitting model:$x^{10} - 110 x^{7} + 495 x^{6} - 7106 x^{5} + 39050 x^{4} - 16170 x^{3} - 210925 x^{2} + 14740 x + 901868$