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SageMath
E = EllipticCurve("bi1")
E.isogeny_class()
Elliptic curves in class 292215bi
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
292215.bi1 | 292215bi1 | \([1, 0, 1, -27833, 1533431]\) | \(1345938541921/203765625\) | \(360983234390625\) | \([2]\) | \(1075200\) | \(1.5173\) | \(\Gamma_0(N)\)-optimal |
292215.bi2 | 292215bi2 | \([1, 0, 1, 47792, 8430431]\) | \(6814692748079/21258460125\) | \(-37660658877505125\) | \([2]\) | \(2150400\) | \(1.8639\) |
Rank
sage: E.rank()
The elliptic curves in class 292215bi have rank \(1\).
Complex multiplication
The elliptic curves in class 292215bi do not have complex multiplication.Modular form 292215.2.a.bi
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.