Properties

Label 474320.bj
Number of curves $4$
Conductor $474320$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("bj1")
 
E.isogeny_class()
 

Elliptic curves in class 474320.bj

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
474320.bj1 474320bj4 \([0, 1, 0, -2477470200, 46117850491348]\) \(1969902499564819009/63690429687500\) \(54372396828097964000000000000\) \([2]\) \(477757440\) \(4.2877\) \(\Gamma_0(N)\)-optimal*
474320.bj2 474320bj2 \([0, 1, 0, -339235640, -2383668253100]\) \(5057359576472449/51765560000\) \(44192158604656373104640000\) \([2]\) \(159252480\) \(3.7384\) \(\Gamma_0(N)\)-optimal*
474320.bj3 474320bj1 \([0, 1, 0, -5314360, -91766155692]\) \(-19443408769/4249907200\) \(-3628137569408523226316800\) \([2]\) \(79626240\) \(3.3918\) \(\Gamma_0(N)\)-optimal*
474320.bj4 474320bj3 \([0, 1, 0, 47809480, 2471926614100]\) \(14156681599871/3100231750000\) \(-2646661857945541123072000000\) \([2]\) \(238878720\) \(3.9411\) \(\Gamma_0(N)\)-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 474320.bj1.

Rank

sage: E.rank()
 

The elliptic curves in class 474320.bj have rank \(1\).

Complex multiplication

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

Modular form 474320.2.a.bj

sage: E.q_eigenform(10)
 
\(q - 2 q^{3} + q^{5} + q^{9} - 4 q^{13} - 2 q^{15} + 4 q^{19} + O(q^{20})\) 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 LMFDB numbering.

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

Isogeny graph

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

The vertices are labelled with LMFDB labels.