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SageMath
E = EllipticCurve("bf1")
E.isogeny_class()
Elliptic curves in class 5390.bf
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
5390.bf1 | 5390ba2 | \([1, 0, 0, -291061, 60415711]\) | \(-23178622194826561/1610510\) | \(-189474890990\) | \([]\) | \(33000\) | \(1.6180\) | |
5390.bf2 | 5390ba1 | \([1, 0, 0, 489, 16841]\) | \(109902239/1100000\) | \(-129413900000\) | \([]\) | \(6600\) | \(0.81331\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 5390.bf have rank \(0\).
Complex multiplication
The elliptic curves in class 5390.bf do not have complex multiplication.Modular form 5390.2.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.
\(\left(\begin{array}{rr} 1 & 5 \\ 5 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.