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SageMath
E = EllipticCurve("b1")
E.isogeny_class()
Elliptic curves in class 134640b
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 134640.cy1 | 134640b1 | \([0, 0, 0, -12747, -468614]\) | \(76711450249/12622500\) | \(37690583040000\) | \([2]\) | \(368640\) | \(1.3266\) | \(\Gamma_0(N)\)-optimal |
| 134640.cy2 | 134640b2 | \([0, 0, 0, 23253, -2635814]\) | \(465664585751/1274620050\) | \(-3805995075379200\) | \([2]\) | \(737280\) | \(1.6732\) |
Rank
sage: E.rank()
The elliptic curves in class 134640b have rank \(1\).
Complex multiplication
The elliptic curves in class 134640b do not have complex multiplication.Modular form 134640.2.a.b
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.
