Properties

Label 127.1.23.22a1.1
Base \(\Q_{127}\)
Degree \(23\)
e \(23\)
f \(1\)
c \(22\)
Galois group $C_{23}:C_{11}$ (as 23T3)

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Defining polynomial

Copy content comment:Define the p-adic field
 
Copy content sage:Prec = 100 # Default precision of 100 Q127 = Qp(127, Prec); x = polygen(QQ) K.<a> = Q127.extension(x^23 + 127)
 
Copy content magma:Prec := 100; // Default precision of 100 Q127 := pAdicField(127, Prec); K := LocalField(Q127, Polynomial(Q127, [127, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]));
 

\(x^{23} + 127\) Copy content Toggle raw display

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

Invariants

Base field: $\Q_{127}$
Copy content comment:Base field Qp
 
Copy content sage:K.base()
 
Copy content magma:Q127;
 
Degree $d$: $23$
Copy content comment:Degree over Qp
 
Copy content sage:K.absolute_degree()
 
Copy content magma:Degree(K);
 
Ramification index $e$:$23$
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 $c$:$22$
Copy content comment:Discriminant exponent
 
Copy content magma:Valuation(Discriminant(K));
 
Discriminant root field:$\Q_{127}$
Root number: $1$
$\Aut(K/\Q_{127})$: $C_1$
This field is not Galois over $\Q_{127}.$
Visible Artin slopes:$[\ ]$
Visible Swan slopes:$[\ ]$
Means:$\langle\ \rangle$
Rams:$(\ )$
Jump set:undefined
Roots of unity:$126 = (127 - 1)$
Copy content comment:Roots of unity
 
Copy content sage:len(K.roots_of_unity())
 

Intermediate fields

The extension is primitive: there are no intermediate fields between this field and $\Q_{ 127 }$.

Canonical tower

Unramified subfield:$\Q_{127}$
Copy content comment:Maximal unramified subextension
 
Copy content sage:K.maximal_unramified_subextension()
 
Relative Eisenstein polynomial: \( x^{23} + 127 \) Copy content Toggle raw display

Ramification polygon

Residual polynomials:$z^{22} + 23 z^{21} + 126 z^{20} + 120 z^{19} + 92 z^{18} + 121 z^{17} + 109 z^{16} + 47 z^{15} + 94 z^{14} + 72 z^{13} + 50 z^{12} + 36 z^{11} + 36 z^{10} + 50 z^9 + 72 z^8 + 94 z^7 + 47 z^6 + 109 z^5 + 121 z^4 + 92 z^3 + 120 z^2 + 126 z + 23$
Associated inertia:$11$
Indices of inseparability:$[0]$

Invariants of the Galois closure

Galois degree: $253$
Galois group: $C_{23}:C_{11}$ (as 23T3)
Inertia group: $C_{23}$ (as 23T1)
Wild inertia group: $C_1$
Galois unramified degree: $11$
Galois tame degree: $23$
Galois Artin slopes: $[\ ]$
Galois Swan slopes: $[\ ]$
Galois mean slope: $0.9565217391304348$
Galois splitting model:not computed