Properties

Label 6.6.1397493.1-27.1-i2
Base field 6.6.1397493.1
Conductor norm \( 27 \)
CM no
Base change no
Q-curve no
Torsion order \( 3 \)
Rank \( 1 \)

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Base field 6.6.1397493.1

Generator \(a\), with minimal polynomial \( x^{6} - 3 x^{5} - 3 x^{4} + 10 x^{3} + 3 x^{2} - 6 x + 1 \); class number \(1\).

sage: R.<x> = PolynomialRing(QQ); K.<a> = NumberField(R([1, -6, 3, 10, -3, -3, 1]))
 
gp: K = nfinit(Polrev([1, -6, 3, 10, -3, -3, 1]));
 
magma: R<x> := PolynomialRing(Rationals()); K<a> := NumberField(R![1, -6, 3, 10, -3, -3, 1]);
 

Weierstrass equation

\({y}^2+\left(a^{4}-3a^{3}+6a-3\right){x}{y}+\left(a^{5}-3a^{4}-2a^{3}+8a^{2}+2a-3\right){y}={x}^{3}+\left(a^{5}-2a^{4}-7a^{3}+10a^{2}+11a-5\right){x}^{2}+\left(-2a^{5}+6a^{4}+8a^{3}-23a^{2}-11a+16\right){x}+5a^{5}-13a^{4}-18a^{3}+42a^{2}+24a-22\)
sage: E = EllipticCurve([K([-3,6,0,-3,1,0]),K([-5,11,10,-7,-2,1]),K([-3,2,8,-2,-3,1]),K([16,-11,-23,8,6,-2]),K([-22,24,42,-18,-13,5])])
 
gp: E = ellinit([Polrev([-3,6,0,-3,1,0]),Polrev([-5,11,10,-7,-2,1]),Polrev([-3,2,8,-2,-3,1]),Polrev([16,-11,-23,8,6,-2]),Polrev([-22,24,42,-18,-13,5])], K);
 
magma: E := EllipticCurve([K![-3,6,0,-3,1,0],K![-5,11,10,-7,-2,1],K![-3,2,8,-2,-3,1],K![16,-11,-23,8,6,-2],K![-22,24,42,-18,-13,5]]);
 

This is a global minimal model.

sage: E.is_global_minimal_model()
 

Invariants

Conductor: \((-a^5+3a^4+3a^3-8a^2-6a)\) = \((a^3-a^2-3a)^{3}\)
sage: E.conductor()
 
gp: ellglobalred(E)[1]
 
magma: Conductor(E);
 
Conductor norm: \( 27 \) = \(3^{3}\)
sage: E.conductor().norm()
 
gp: idealnorm(ellglobalred(E)[1])
 
magma: Norm(Conductor(E));
 
Discriminant: \((-3a^4+9a^3-15a+9)\) = \((a^3-a^2-3a)^{9}\)
sage: E.discriminant()
 
gp: E.disc
 
magma: Discriminant(E);
 
Discriminant norm: \( 19683 \) = \(3^{9}\)
sage: E.discriminant().norm()
 
gp: norm(E.disc)
 
magma: Norm(Discriminant(E));
 
j-invariant: \( 31337523 a^{5} - 128952081 a^{4} + 49925556 a^{3} + 257372748 a^{2} - 193378914 a + 28043883 \)
sage: E.j_invariant()
 
gp: E.j
 
magma: jInvariant(E);
 
Endomorphism ring: \(\Z\)
Geometric endomorphism ring: \(\Z\) (no potential complex multiplication)
sage: E.has_cm(), E.cm_discriminant()
 
magma: HasComplexMultiplication(E);
 
Sato-Tate group: $\mathrm{SU}(2)$

Mordell-Weil group

Rank: \(1\)
Generator $\left(a^{5} - 3 a^{4} - 2 a^{3} + 5 a^{2} + 5 a + 3 : -10 a^{5} + 27 a^{4} + 37 a^{3} - 82 a^{2} - 58 a + 29 : 1\right)$
Height \(0.034078774406413841674109693728738132561\)
Torsion structure: \(\Z/3\Z\)
sage: T = E.torsion_subgroup(); T.invariants()
 
gp: T = elltors(E); T[2]
 
magma: T,piT := TorsionSubgroup(E); Invariants(T);
 
Torsion generator: $\left(-a^{5} + \frac{8}{3} a^{4} + \frac{10}{3} a^{3} - 8 a^{2} - \frac{14}{3} a + \frac{11}{3} : \frac{2}{3} a^{5} - \frac{5}{3} a^{4} - \frac{5}{3} a^{3} + \frac{13}{3} a^{2} + \frac{5}{3} a - \frac{7}{3} : 1\right)$
sage: T.gens()
 
gp: T[3]
 
magma: [piT(P) : P in Generators(T)];
 

BSD invariants

Analytic rank: \( 1 \)
sage: E.rank()
 
magma: Rank(E);
 
Mordell-Weil rank: \(1\)
Regulator: \( 0.034078774406413841674109693728738132561 \)
Period: \( 56479.063644706498032255049727204084948 \)
Tamagawa product: \( 3 \)
Torsion order: \(3\)
Leading coefficient: \( 3.25632 \)
Analytic order of Ш: \( 1 \) (rounded)

Local data at primes of bad reduction

sage: E.local_data()
 
magma: LocalInformation(E);
 
prime Norm Tamagawa number Kodaira symbol Reduction type Root number ord(\(\mathfrak{N}\)) ord(\(\mathfrak{D}\)) ord\((j)_{-}\)
\((a^3-a^2-3a)\) \(3\) \(3\) \(IV^{*}\) Additive \(-1\) \(3\) \(9\) \(0\)

Galois Representations

The mod \( p \) Galois Representation has maximal image for all primes \( p < 1000 \) except those listed.

prime Image of Galois Representation
\(3\) 3B.1.1

Isogenies and isogeny class

This curve has non-trivial cyclic isogenies of degree \(d\) for \(d=\) 3.
Its isogeny class 27.1-i consists of curves linked by isogenies of degree 3.

Base change

This elliptic curve is not a \(\Q\)-curve.

It is not the base change of an elliptic curve defined over any subfield.