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SageMath
E = EllipticCurve("ea1")
E.isogeny_class()
Elliptic curves in class 84150.ea
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
84150.ea1 | 84150ej2 | \([1, -1, 1, -315605, 68319397]\) | \(11304275372307/635800\) | \(195538303125000\) | \([2]\) | \(663552\) | \(1.8069\) | |
84150.ea2 | 84150ej1 | \([1, -1, 1, -18605, 1197397]\) | \(-2315685267/658240\) | \(-202439655000000\) | \([2]\) | \(331776\) | \(1.4603\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 84150.ea have rank \(1\).
Complex multiplication
The elliptic curves in class 84150.ea do not have complex multiplication.Modular form 84150.2.a.ea
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 LMFDB 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 LMFDB labels.