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SageMath
E = EllipticCurve("y1")
E.isogeny_class()
Elliptic curves in class 159201.y
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality | CM discriminant |
|---|---|---|---|---|---|---|---|---|---|
| 159201.y1 | 159201bc1 | \([0, 0, 1, 0, -30332213]\) | \(0\) | \(-397458632294465427\) | \([]\) | \(960336\) | \(2.0559\) | \(\Gamma_0(N)\)-optimal | \(-3\) |
| 159201.y2 | 159201bc2 | \([0, 0, 1, 0, 818969744]\) | \(0\) | \(-289747342942665296283\) | \([]\) | \(2881008\) | \(2.6052\) | \(-3\) |
Rank
sage: E.rank()
The elliptic curves in class 159201.y have rank \(0\).
Complex multiplication
Each elliptic curve in class 159201.y has complex multiplication by an order in the imaginary quadratic field \(\Q(\sqrt{-3}) \).Modular form 159201.2.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 LMFDB numbering.
\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.
