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SageMath
E = EllipticCurve("bi1")
E.isogeny_class()
Elliptic curves in class 30960bi
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
30960.d2 | 30960bi1 | \([0, 0, 0, 357, -6838]\) | \(1685159/7740\) | \(-23111516160\) | \([2]\) | \(21504\) | \(0.67103\) | \(\Gamma_0(N)\)-optimal |
30960.d1 | 30960bi2 | \([0, 0, 0, -3963, -85462]\) | \(2305199161/277350\) | \(828162662400\) | \([2]\) | \(43008\) | \(1.0176\) |
Rank
sage: E.rank()
The elliptic curves in class 30960bi have rank \(1\).
Complex multiplication
The elliptic curves in class 30960bi do not have complex multiplication.Modular form 30960.2.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.