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SageMath
E = EllipticCurve("y1")
E.isogeny_class()
Elliptic curves in class 12342y
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
12342.t1 | 12342y1 | \([1, 1, 1, -305, -1429]\) | \(1771561/612\) | \(1084195332\) | \([2]\) | \(11520\) | \(0.43542\) | \(\Gamma_0(N)\)-optimal |
12342.t2 | 12342y2 | \([1, 1, 1, 905, -8689]\) | \(46268279/46818\) | \(-82940942898\) | \([2]\) | \(23040\) | \(0.78199\) |
Rank
sage: E.rank()
The elliptic curves in class 12342y have rank \(0\).
Complex multiplication
The elliptic curves in class 12342y do not have complex multiplication.Modular form 12342.2.a.y
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.