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SageMath
E = EllipticCurve("u1")
E.isogeny_class()
Elliptic curves in class 89232u
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
89232.bo3 | 89232u1 | \([0, 1, 0, -2084, 34620]\) | \(810448/33\) | \(40776882432\) | \([2]\) | \(73728\) | \(0.80174\) | \(\Gamma_0(N)\)-optimal |
89232.bo2 | 89232u2 | \([0, 1, 0, -5464, -110044]\) | \(3650692/1089\) | \(5382548481024\) | \([2, 2]\) | \(147456\) | \(1.1483\) | |
89232.bo4 | 89232u3 | \([0, 1, 0, 14816, -718444]\) | \(36382894/43923\) | \(-434192244135936\) | \([2]\) | \(294912\) | \(1.4949\) | |
89232.bo1 | 89232u4 | \([0, 1, 0, -79824, -8706060]\) | \(5690357426/891\) | \(8807806605312\) | \([2]\) | \(294912\) | \(1.4949\) |
Rank
sage: E.rank()
The elliptic curves in class 89232u have rank \(1\).
Complex multiplication
The elliptic curves in class 89232u do not have complex multiplication.Modular form 89232.2.a.u
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.