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SageMath
sage: E = EllipticCurve("cy1")
sage: E.isogeny_class()
Elliptic curves in class 35904cy
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | Torsion structure | Modular degree | Optimality |
---|---|---|---|---|---|
35904.bs1 | 35904cy1 | [0, 1, 0, -12545, 536319] | [2] | 73728 | \(\Gamma_0(N)\)-optimal |
35904.bs2 | 35904cy2 | [0, 1, 0, -9985, 764159] | [2] | 147456 |
Rank
sage: E.rank()
The elliptic curves in class 35904cy have rank \(0\).
Complex multiplication
The elliptic curves in class 35904cy do not have complex multiplication.Modular form 35904.2.a.cy
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.