Properties

Label 151.10.2.10a1.2
Base \(\Q_{151}\)
Degree \(20\)
e \(2\)
f \(10\)
c \(10\)
Galois group $C_2\times C_{10}$ (as 20T3)

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Defining polynomial

Copy content comment:Define the p-adic field
 
Copy content sage:Prec = 100 # Default precision of 100 Q151 = Qp(151, Prec); x = polygen(QQ) L.<t> = Q151.extension(x^10 + x^6 + 21*x^5 + 104*x^4 + 49*x^3 + 20*x^2 + 142*x + 6) K.<a> = L.extension(x^2 + 151)
 
Copy content magma:Prec := 100; // Default precision of 100 Q151 := pAdicField(151, Prec); K := LocalField(Q151, Polynomial(Q151, [187, 1704, 20404, 6268, 15564, 31748, 12537, 11316, 12914, 4466, 661, 326, 41, 98, 208, 42, 2, 0, 0, 0, 1]));
 

$( x^{10} + x^{6} + 21 x^{5} + 104 x^{4} + 49 x^{3} + 20 x^{2} + 142 x + 6 )^{2} + 151$ Copy content Toggle raw display

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

Invariants

Base field: $\Q_{151}$
Copy content comment:Base field Qp
 
Copy content sage:K.base()
 
Copy content magma:Q151;
 
Degree $d$: $20$
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 $f$:$10$
Copy content comment:Residue field degree (Inertia degree)
 
Copy content sage:K.absolute_f()
 
Copy content magma:InertiaDegree(K);
 
Discriminant exponent $c$:$10$
Copy content comment:Discriminant exponent
 
Copy content magma:Valuation(Discriminant(K));
 
Discriminant root field:$\Q_{151}$
Root number: $1$
$\Aut(K/\Q_{151})$ $=$ $\Gal(K/\Q_{151})$: $C_2\times C_{10}$
This field is Galois and abelian over $\Q_{151}.$
Visible Artin slopes:$[\ ]$
Visible Swan slopes:$[\ ]$
Means:$\langle\ \rangle$
Rams:$(\ )$
Jump set:undefined
Roots of unity:$6162677950336718514000 = (151^{ 10 } - 1)$
Copy content comment:Roots of unity
 
Copy content sage:len(K.roots_of_unity())
 

Intermediate fields

$\Q_{151}(\sqrt{3})$, $\Q_{151}(\sqrt{151})$, $\Q_{151}(\sqrt{151\cdot 3})$, 151.2.2.2a1.2, 151.5.1.0a1.1, 151.10.1.0a1.1, 151.5.2.5a1.1, 151.5.2.5a1.2

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

Canonical tower

Unramified subfield:151.10.1.0a1.1 $\cong \Q_{151}(t)$ where $t$ is a root of \( x^{10} + x^{6} + 21 x^{5} + 104 x^{4} + 49 x^{3} + 20 x^{2} + 142 x + 6 \) Copy content Toggle raw display
Copy content comment:Maximal unramified subextension
 
Copy content sage:K.maximal_unramified_subextension()
 
Relative Eisenstein polynomial: \( x^{2} + 151 \) $\ \in\Q_{151}(t)[x]$ 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: $20$
Galois group: $C_2\times C_{10}$ (as 20T3)
Inertia group: Intransitive group isomorphic to $C_2$
Wild inertia group: $C_1$
Galois unramified degree: $10$
Galois tame degree: $2$
Galois Artin slopes: $[\ ]$
Galois Swan slopes: $[\ ]$
Galois mean slope: $0.5$
Galois splitting model:not computed