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SageMath
E = EllipticCurve("el1")
E.isogeny_class()
Elliptic curves in class 20160.el
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 20160.el1 | 20160ci1 | \([0, 0, 0, -20352, -1117496]\) | \(1248870793216/42525\) | \(31744742400\) | \([2]\) | \(30720\) | \(1.1068\) | \(\Gamma_0(N)\)-optimal |
| 20160.el2 | 20160ci2 | \([0, 0, 0, -19452, -1220816]\) | \(-68150496976/14467005\) | \(-172792981831680\) | \([2]\) | \(61440\) | \(1.4533\) |
Rank
sage: E.rank()
The elliptic curves in class 20160.el have rank \(0\).
Complex multiplication
The elliptic curves in class 20160.el do not have complex multiplication.Modular form 20160.2.a.el
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 LMFDB 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 LMFDB labels.
