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SageMath
E = EllipticCurve("bi1")
E.isogeny_class()
Elliptic curves in class 66240bi
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 66240.s2 | 66240bi1 | \([0, 0, 0, 2292, -380432]\) | \(6967871/331200\) | \(-63293305651200\) | \([2]\) | \(147456\) | \(1.3280\) | \(\Gamma_0(N)\)-optimal |
| 66240.s1 | 66240bi2 | \([0, 0, 0, -66828, -6380048]\) | \(172715635009/7935000\) | \(1516402114560000\) | \([2]\) | \(294912\) | \(1.6746\) |
Rank
sage: E.rank()
The elliptic curves in class 66240bi have rank \(0\).
Complex multiplication
The elliptic curves in class 66240bi do not have complex multiplication.Modular form 66240.2.a.bi
sage: E.q_eigenform(10)
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.
