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SageMath
E = EllipticCurve("bf1")
E.isogeny_class()
Elliptic curves in class 206400.bf
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 206400.bf1 | 206400jd2 | \([0, -1, 0, -2137633, 1203647137]\) | \(263732349218689/4160250\) | \(17040384000000000\) | \([2]\) | \(2654208\) | \(2.2485\) | |
| 206400.bf2 | 206400jd1 | \([0, -1, 0, -137633, 17647137]\) | \(70393838689/8062500\) | \(33024000000000000\) | \([2]\) | \(1327104\) | \(1.9019\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 206400.bf have rank \(1\).
Complex multiplication
The elliptic curves in class 206400.bf do not have complex multiplication.Modular form 206400.2.a.bf
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.
