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SageMath
E = EllipticCurve("bf1")
E.isogeny_class()
Elliptic curves in class 257600bf
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
257600.bf2 | 257600bf1 | \([0, 1, 0, -263233, -52070337]\) | \(1969910093092/7889\) | \(8078336000000\) | \([2]\) | \(983040\) | \(1.6881\) | \(\Gamma_0(N)\)-optimal |
257600.bf1 | 257600bf2 | \([0, 1, 0, -267233, -50410337]\) | \(1030541881826/62236321\) | \(127459985408000000\) | \([2]\) | \(1966080\) | \(2.0347\) |
Rank
sage: E.rank()
The elliptic curves in class 257600bf have rank \(0\).
Complex multiplication
The elliptic curves in class 257600bf do not have complex multiplication.Modular form 257600.2.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 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.