Base field 5.5.38569.1
Generator \(a\), with minimal polynomial \( x^{5} - 5 x^{3} + 4 x - 1 \); class number \(1\).
sage: R.<x> = PolynomialRing(QQ); K.<a> = NumberField(R([-1, 4, 0, -5, 0, 1]))
gp: K = nfinit(Polrev([-1, 4, 0, -5, 0, 1]));
magma: R<x> := PolynomialRing(Rationals()); K<a> := NumberField(R![-1, 4, 0, -5, 0, 1]);
Weierstrass equation
sage: E = EllipticCurve([K([0,0,0,0,0]),K([-1,-3,4,1,-1]),K([1,1,0,0,0]),K([0,-4,4,1,-1]),K([1,-1,1,-1,-1])])
gp: E = ellinit([Polrev([0,0,0,0,0]),Polrev([-1,-3,4,1,-1]),Polrev([1,1,0,0,0]),Polrev([0,-4,4,1,-1]),Polrev([1,-1,1,-1,-1])], K);
magma: E := EllipticCurve([K![0,0,0,0,0],K![-1,-3,4,1,-1],K![1,1,0,0,0],K![0,-4,4,1,-1],K![1,-1,1,-1,-1]]);
This is a global minimal model.
sage: E.is_global_minimal_model()
Invariants
Conductor: | \((a^4+a^3-5a^2-5a+4)\) | = | \((a^4+a^3-5a^2-5a+4)\) |
sage: E.conductor()
gp: ellglobalred(E)[1]
magma: Conductor(E);
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Conductor norm: | \( 37 \) | = | \(37\) |
sage: E.conductor().norm()
gp: idealnorm(ellglobalred(E)[1])
magma: Norm(Conductor(E));
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Discriminant: | \((a^4+a^3-5a^2-5a+4)\) | = | \((a^4+a^3-5a^2-5a+4)\) |
sage: E.discriminant()
gp: E.disc
magma: Discriminant(E);
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Discriminant norm: | \( 37 \) | = | \(37\) |
sage: E.discriminant().norm()
gp: norm(E.disc)
magma: Norm(Discriminant(E));
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j-invariant: | \( \frac{682639360}{37} a^{4} - \frac{785629184}{37} a^{3} - \frac{2508931072}{37} a^{2} + \frac{2887372800}{37} a - \frac{592875520}{37} \) | ||
sage: E.j_invariant()
gp: E.j
magma: jInvariant(E);
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Endomorphism ring: | \(\Z\) | ||
Geometric endomorphism ring: | \(\Z\) | (no potential complex multiplication) | |
sage: E.has_cm(), E.cm_discriminant()
magma: HasComplexMultiplication(E);
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Sato-Tate group: | $\mathrm{SU}(2)$ |
Mordell-Weil group
Rank: | \(1\) |
Generator | $\left(-a^{4} - a^{3} + 5 a^{2} + 5 a - 2 : -2 a^{4} - 2 a^{3} + 8 a^{2} + 7 a - 2 : 1\right)$ |
Height | \(0.0059884101456201287573512395435720741281\) |
Torsion structure: | trivial |
sage: T = E.torsion_subgroup(); T.invariants()
gp: T = elltors(E); T[2]
magma: T,piT := TorsionSubgroup(E); Invariants(T);
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BSD invariants
Analytic rank: | \( 1 \) | ||
sage: E.rank()
magma: Rank(E);
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Mordell-Weil rank: | \(1\) | ||
Regulator: | \( 0.0059884101456201287573512395435720741281 \) | ||
Period: | \( 12153.673338240197080193477555640394305 \) | ||
Tamagawa product: | \( 1 \) | ||
Torsion order: | \(1\) | ||
Leading coefficient: | \( 1.85297650 \) | ||
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\((j)_{-}\) |
---|---|---|---|---|---|---|---|---|
\((a^4+a^3-5a^2-5a+4)\) | \(37\) | \(1\) | \(I_{1}\) | Non-split multiplicative | \(1\) | \(1\) | \(1\) | \(1\) |
Galois Representations
The mod \( p \) Galois Representation has maximal image for all primes \( p < 1000 \) .
Isogenies and isogeny class
This curve has no rational isogenies. Its isogeny class 37.1-d consists of this curve only.
Base change
This elliptic curve is not a \(\Q\)-curve.
It is not the base change of an elliptic curve defined over any subfield.