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SageMath
E = EllipticCurve("bd1")
E.isogeny_class()
Elliptic curves in class 468270bd
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
468270.bd4 | 468270bd1 | \([1, -1, 0, -2478405, -1500496299]\) | \(35198225176082067/18035507200\) | \(862677031609958400\) | \([2]\) | \(13271040\) | \(2.3931\) | \(\Gamma_0(N)\)-optimal* |
468270.bd2 | 468270bd2 | \([1, -1, 0, -39649605, -96086331819]\) | \(144118734029937784467/37867520\) | \(1811284783165440\) | \([2]\) | \(26542080\) | \(2.7397\) | |
468270.bd3 | 468270bd3 | \([1, -1, 0, -7589445, 6254314325]\) | \(1386456968640843/318028000000\) | \(11089520331618564000000\) | \([2]\) | \(39813120\) | \(2.9424\) | \(\Gamma_0(N)\)-optimal* |
468270.bd1 | 468270bd4 | \([1, -1, 0, -40259445, -92977543675]\) | \(206956783279200843/12642726098000\) | \(440847246502998583974000\) | \([2]\) | \(79626240\) | \(3.2890\) |
Rank
sage: E.rank()
The elliptic curves in class 468270bd have rank \(0\).
Complex multiplication
The elliptic curves in class 468270bd do not have complex multiplication.Modular form 468270.2.a.bd
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 3 & 6 \\ 2 & 1 & 6 & 3 \\ 3 & 6 & 1 & 2 \\ 6 & 3 & 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.