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SageMath
E = EllipticCurve("y1")
E.isogeny_class()
Elliptic curves in class 100800y
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 100800.pd2 | 100800y1 | \([0, 0, 0, -1200, 9000]\) | \(442368/175\) | \(75600000000\) | \([2]\) | \(73728\) | \(0.78579\) | \(\Gamma_0(N)\)-optimal |
| 100800.pd1 | 100800y2 | \([0, 0, 0, -8700, -306000]\) | \(10536048/245\) | \(1693440000000\) | \([2]\) | \(147456\) | \(1.1324\) |
Rank
sage: E.rank()
The elliptic curves in class 100800y have rank \(0\).
Complex multiplication
The elliptic curves in class 100800y do not have complex multiplication.Modular form 100800.2.a.y
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.
