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SageMath
E = EllipticCurve("bg1")
E.isogeny_class()
Elliptic curves in class 23520.bg
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 23520.bg1 | 23520o1 | \([0, 1, 0, -1486, 19424]\) | \(140608/15\) | \(38739462720\) | \([2]\) | \(17920\) | \(0.76604\) | \(\Gamma_0(N)\)-optimal |
| 23520.bg2 | 23520o2 | \([0, 1, 0, 1944, 99000]\) | \(39304/225\) | \(-4648735526400\) | \([2]\) | \(35840\) | \(1.1126\) |
Rank
sage: E.rank()
The elliptic curves in class 23520.bg have rank \(1\).
Complex multiplication
The elliptic curves in class 23520.bg do not have complex multiplication.Modular form 23520.2.a.bg
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.
