Properties

Label 197.2.6.10a1.4
Base \(\Q_{197}\)
Degree \(12\)
e \(6\)
f \(2\)
c \(10\)
Galois group $C_6\times S_3$ (as 12T18)

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Defining polynomial

Copy content comment:Define the p-adic field
 
Copy content sage:Prec = 100 # Default precision of 100 Q197 = Qp(197, Prec); x = polygen(QQ) L.<t> = Q197.extension(x^2 + 192*x + 2) K.<a> = L.extension(x^6 + (20685*t + 29747))
 
Copy content magma:Prec := 100; // Default precision of 100 Q197 := pAdicField(197, Prec); K := LocalField(Q197, Polynomial(Q197, [38479, 37849, 8847552, 1132554240, 81554964720, 3132729944064, 50178049081504, 1566364972032, 20388741180, 141569280, 552972, 1152, 1]));
 

$( x^{2} + 192 x + 2 )^{6} + 985 x + 38415$ Copy content Toggle raw display

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

Invariants

Base field: $\Q_{197}$
Copy content comment:Base field Qp
 
Copy content sage:K.base()
 
Copy content magma:Q197;
 
Degree $d$: $12$
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 $f$:$2$
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:$\Q_{197}$
Root number: $-1$
$\Aut(K/\Q_{197})$: $C_6$
This field is not Galois over $\Q_{197}.$
Visible Artin slopes:$[\ ]$
Visible Swan slopes:$[\ ]$
Means:$\langle\ \rangle$
Rams:$(\ )$
Jump set:undefined
Roots of unity:$38808 = (197^{ 2 } - 1)$
Copy content comment:Roots of unity
 
Copy content sage:len(K.roots_of_unity())
 

Intermediate fields

$\Q_{197}(\sqrt{2})$, $\Q_{197}(\sqrt{197})$, $\Q_{197}(\sqrt{197\cdot 2})$, 197.2.2.2a1.2, 197.2.3.4a1.1

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

Canonical tower

Unramified subfield:$\Q_{197}(\sqrt{2})$ $\cong \Q_{197}(t)$ where $t$ is a root of \( x^{2} + 192 x + 2 \) Copy content Toggle raw display
Copy content comment:Maximal unramified subextension
 
Copy content sage:K.maximal_unramified_subextension()
 
Relative Eisenstein polynomial: \( x^{6} + 20685 t + 29747 \) $\ \in\Q_{197}(t)[x]$ Copy content Toggle raw display

Ramification polygon

Residual polynomials:$z^5 + 6 z^4 + 15 z^3 + 20 z^2 + 15 z + 6$
Associated inertia:$1$
Indices of inseparability:$[0]$

Invariants of the Galois closure

Galois degree: $36$
Galois group: $C_6\times S_3$ (as 12T18)
Inertia group: Intransitive group isomorphic to $C_6$
Wild inertia group: $C_1$
Galois unramified degree: $6$
Galois tame degree: $6$
Galois Artin slopes: $[\ ]$
Galois Swan slopes: $[\ ]$
Galois mean slope: $0.8333333333333334$
Galois splitting model:not computed