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SageMath
E = EllipticCurve("bf1")
E.isogeny_class()
Elliptic curves in class 98736.bf
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 98736.bf1 | 98736d1 | \([0, -1, 0, -105068, 13112640]\) | \(282841522000/772497\) | \(350342542801152\) | \([2]\) | \(460800\) | \(1.6642\) | \(\Gamma_0(N)\)-optimal |
| 98736.bf2 | 98736d2 | \([0, -1, 0, -63928, 23447008]\) | \(-15927506500/121463793\) | \(-220344851037053952\) | \([2]\) | \(921600\) | \(2.0108\) |
Rank
sage: E.rank()
The elliptic curves in class 98736.bf have rank \(0\).
Complex multiplication
The elliptic curves in class 98736.bf do not have complex multiplication.Modular form 98736.2.a.bf
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.
