Properties

Label 489762g
Number of curves $2$
Conductor $489762$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("g1")
 
E.isogeny_class()
 

Elliptic curves in class 489762g

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
489762.g1 489762g1 \([1, -1, 0, -481311, -128404899]\) \(-100089230083481353/354923856\) \(-43726973983056\) \([]\) \(3981312\) \(1.8358\) \(\Gamma_0(N)\)-optimal*
489762.g2 489762g2 \([1, -1, 0, -307566, -222312492]\) \(-26117117748640633/158305301876736\) \(-19503371496515751936\) \([]\) \(11943936\) \(2.3851\) \(\Gamma_0(N)\)-optimal*
*optimality has not been determined rigorously for conductors over 400000. In this case the optimal curve is certainly one of the 2 curves highlighted, and conditionally curve 489762g1.

Rank

sage: E.rank()
 

The elliptic curves in class 489762g have rank \(1\).

Complex multiplication

The elliptic curves in class 489762g do not have complex multiplication.

Modular form 489762.2.a.g

sage: E.q_eigenform(10)
 
\(q - q^{2} + q^{4} - 3 q^{5} - q^{7} - q^{8} + 3 q^{10} + q^{14} + q^{16} + 6 q^{17} + q^{19} + O(q^{20})\) Copy content Toggle raw display

Isogeny matrix

sage: E.isogeny_class().matrix()
 

The \(i,j\) entry is the smallest degree of a cyclic isogeny between the \(i\)-th and \(j\)-th curve in the isogeny class, in the Cremona numbering.

\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)

Isogeny graph

sage: E.isogeny_graph().plot(edge_labels=True)
 

The vertices are labelled with Cremona labels.