Properties

Label 149.5.2.5a1.1
Base \(\Q_{149}\)
Degree \(10\)
e \(2\)
f \(5\)
c \(5\)
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 Q149 = Qp(149, Prec); x = polygen(QQ) L.<t> = Q149.extension(x^5 + 2*x + 147) K.<a> = L.extension(x^2 + 149*t)
 
Copy content magma:Prec := 100; // Default precision of 100 Q149 := pAdicField(149, Prec); K := LocalField(Q149, Polynomial(Q149, [21609, 737, 4, 0, 0, 294, 4, 0, 0, 0, 1]));
 

$( x^{5} + 2 x + 147 )^{2} + 149 x$ Copy content Toggle raw display

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

Invariants

Base field: $\Q_{149}$
Copy content comment:Base field Qp
 
Copy content sage:K.base()
 
Copy content magma:Q149;
 
Degree $d$: $10$
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 $f$:$5$
Copy content comment:Residue field degree (Inertia degree)
 
Copy content sage:K.absolute_f()
 
Copy content magma:InertiaDegree(K);
 
Discriminant exponent $c$:$5$
Copy content comment:Discriminant exponent
 
Copy content magma:Valuation(Discriminant(K));
 
Discriminant root field:$\Q_{149}(\sqrt{149\cdot 2})$
Root number: $-1$
$\Aut(K/\Q_{149})$ $=$ $\Gal(K/\Q_{149})$: $C_{10}$
This field is Galois and abelian over $\Q_{149}.$
Visible Artin slopes:$[\ ]$
Visible Swan slopes:$[\ ]$
Means:$\langle\ \rangle$
Rams:$(\ )$
Jump set:undefined
Roots of unity:$73439775748 = (149^{ 5 } - 1)$
Copy content comment:Roots of unity
 
Copy content sage:len(K.roots_of_unity())
 

Intermediate fields

$\Q_{149}(\sqrt{149\cdot 2})$, 149.5.1.0a1.1

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

Canonical tower

Unramified subfield:149.5.1.0a1.1 $\cong \Q_{149}(t)$ where $t$ is a root of \( x^{5} + 2 x + 147 \) Copy content Toggle raw display
Copy content comment:Maximal unramified subextension
 
Copy content sage:K.maximal_unramified_subextension()
 
Relative Eisenstein polynomial: \( x^{2} + 149 t \) $\ \in\Q_{149}(t)[x]$ 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: $10$
Galois group: $C_{10}$ (as 10T1)
Inertia group: Intransitive group isomorphic to $C_2$
Wild inertia group: $C_1$
Galois unramified degree: $5$
Galois tame degree: $2$
Galois Artin slopes: $[\ ]$
Galois Swan slopes: $[\ ]$
Galois mean slope: $0.5$
Galois splitting model:not computed