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SageMath
E = EllipticCurve("u1")
E.isogeny_class()
Elliptic curves in class 18648.u
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 18648.u1 | 18648z2 | \([0, 0, 0, -13179, 569270]\) | \(169556172914/4353013\) | \(6499013584896\) | \([2]\) | \(41472\) | \(1.2408\) | |
| 18648.u2 | 18648z1 | \([0, 0, 0, 141, 28478]\) | \(415292/469567\) | \(-350529887232\) | \([2]\) | \(20736\) | \(0.89422\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 18648.u have rank \(1\).
Complex multiplication
The elliptic curves in class 18648.u do not have complex multiplication.Modular form 18648.2.a.u
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.
