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SageMath
E = EllipticCurve("bt1")
E.isogeny_class()
Elliptic curves in class 229320.bt
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 229320.bt1 | 229320bp2 | \([0, 0, 0, -8342103, -9273867302]\) | \(8525120016688/12675\) | \(95454810931334400\) | \([2]\) | \(5275648\) | \(2.5271\) | |
| 229320.bt2 | 229320bp1 | \([0, 0, 0, -516558, -147716723]\) | \(-32385538048/1285245\) | \(-604944864277331760\) | \([2]\) | \(2637824\) | \(2.1805\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 229320.bt have rank \(1\).
Complex multiplication
The elliptic curves in class 229320.bt do not have complex multiplication.Modular form 229320.2.a.bt
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.
