Properties

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

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Show commands: SageMath
E = EllipticCurve("o1")
 
E.isogeny_class()
 

Elliptic curves in class 489762o

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
489762.o2 489762o1 \([1, -1, 0, 40782, 70477460]\) \(35937/10304\) \(-2150737033379852736\) \([2]\) \(8266752\) \(2.1969\) \(\Gamma_0(N)\)-optimal*
489762.o1 489762o2 \([1, -1, 0, -2331978, 1334209436]\) \(6719171103/207368\) \(43283582796769536312\) \([2]\) \(16533504\) \(2.5434\) \(\Gamma_0(N)\)-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 489762o1.

Rank

sage: E.rank()
 

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

Complex multiplication

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

Modular form 489762.2.a.o

sage: E.q_eigenform(10)
 
\(q - q^{2} + q^{4} - 2 q^{5} - q^{7} - q^{8} + 2 q^{10} + q^{14} + q^{16} - 2 q^{19} + O(q^{20})\) 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.

\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with Cremona labels.