Properties

Label 474320bd
Number of curves $4$
Conductor $474320$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("bd1")
 
E.isogeny_class()
 

Elliptic curves in class 474320bd

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
474320.bd4 474320bd1 \([0, 1, 0, 946664, -2897181036]\) \(109902239/4312000\) \(-3681146072857673728000\) \([2]\) \(26542080\) \(2.8180\) \(\Gamma_0(N)\)-optimal*
474320.bd2 474320bd2 \([0, 1, 0, -25615256, -47765576300]\) \(2177286259681/105875000\) \(90385283038916096000000\) \([2]\) \(53084160\) \(3.1646\) \(\Gamma_0(N)\)-optimal*
474320.bd3 474320bd3 \([0, 1, 0, -8539736, 79251248404]\) \(-80677568161/3131816380\) \(-2673625595581710572830720\) \([2]\) \(79626240\) \(3.3673\) \(\Gamma_0(N)\)-optimal*
474320.bd1 474320bd4 \([0, 1, 0, -333923256, 2335720882900]\) \(4823468134087681/30382271150\) \(25937286207866303006105600\) \([2]\) \(159252480\) \(3.7139\) \(\Gamma_0(N)\)-optimal*
*optimality has not been determined rigorously for conductors over 400000. In this case the optimal curve is certainly one of the 4 curves highlighted, and conditionally curve 474320bd1.

Rank

sage: E.rank()
 

The elliptic curves in class 474320bd have rank \(0\).

Complex multiplication

The elliptic curves in class 474320bd do not have complex multiplication.

Modular form 474320.2.a.bd

sage: E.q_eigenform(10)
 
\(q - 2 q^{3} - q^{5} + q^{9} + 2 q^{13} + 2 q^{15} + 6 q^{17} - 2 q^{19} + O(q^{20})\) 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.

\(\left(\begin{array}{rrrr} 1 & 2 & 3 & 6 \\ 2 & 1 & 6 & 3 \\ 3 & 6 & 1 & 2 \\ 6 & 3 & 2 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with Cremona labels.