Properties

Label 485520bp
Number of curves $2$
Conductor $485520$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("bp1")
 
E.isogeny_class()
 

Elliptic curves in class 485520bp

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
485520.bp2 485520bp1 \([0, -1, 0, 14308464, 86020784640]\) \(16098893047132187167/168182866341984375\) \(-3384452801897141184000000\) \([2]\) \(64880640\) \(3.3878\) \(\Gamma_0(N)\)-optimal*
485520.bp1 485520bp2 \([0, -1, 0, -226611456, 1219500824256]\) \(63953244990201015504593/5088175635498046875\) \(102392655450939000000000000\) \([2]\) \(129761280\) \(3.7344\) \(\Gamma_0(N)\)-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 485520bp1.

Rank

sage: E.rank()
 

The elliptic curves in class 485520bp have rank \(1\).

Complex multiplication

The elliptic curves in class 485520bp do not have complex multiplication.

Modular form 485520.2.a.bp

sage: E.q_eigenform(10)
 
\(q - q^{3} - q^{5} + q^{7} + q^{9} - 2 q^{11} + 2 q^{13} + q^{15} + 2 q^{19} + O(q^{20})\) 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.