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SageMath
E = EllipticCurve("a1")
E.isogeny_class()
Elliptic curves in class 8550a
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
8550.i2 | 8550a1 | \([1, -1, 0, -717, -559]\) | \(132651/76\) | \(23373562500\) | \([2]\) | \(6144\) | \(0.67927\) | \(\Gamma_0(N)\)-optimal |
8550.i1 | 8550a2 | \([1, -1, 0, -7467, 249191]\) | \(149721291/722\) | \(222048843750\) | \([2]\) | \(12288\) | \(1.0258\) |
Rank
sage: E.rank()
The elliptic curves in class 8550a have rank \(1\).
Complex multiplication
The elliptic curves in class 8550a do not have complex multiplication.Modular form 8550.2.a.a
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.