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SageMath
E = EllipticCurve("h1")
E.isogeny_class()
Elliptic curves in class 840h
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
840.g3 | 840h1 | \([0, 1, 0, -71, -246]\) | \(2508888064/118125\) | \(1890000\) | \([2]\) | \(192\) | \(-0.034864\) | \(\Gamma_0(N)\)-optimal |
840.g2 | 840h2 | \([0, 1, 0, -196, 704]\) | \(3269383504/893025\) | \(228614400\) | \([2, 2]\) | \(384\) | \(0.31171\) | |
840.g1 | 840h3 | \([0, 1, 0, -2896, 59024]\) | \(2624033547076/324135\) | \(331914240\) | \([2]\) | \(768\) | \(0.65828\) | |
840.g4 | 840h4 | \([0, 1, 0, 504, 5184]\) | \(13799183324/18600435\) | \(-19046845440\) | \([2]\) | \(768\) | \(0.65828\) |
Rank
sage: E.rank()
The elliptic curves in class 840h have rank \(1\).
Complex multiplication
The elliptic curves in class 840h do not have complex multiplication.Modular form 840.2.a.h
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.