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SageMath
E = EllipticCurve("cs1")
E.isogeny_class()
Elliptic curves in class 31680cs
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
31680.be1 | 31680cs1 | \([0, 0, 0, -588, 14992]\) | \(-117649/440\) | \(-84085309440\) | \([]\) | \(23040\) | \(0.78192\) | \(\Gamma_0(N)\)-optimal |
31680.be2 | 31680cs2 | \([0, 0, 0, 5172, -355952]\) | \(80062991/332750\) | \(-63589515264000\) | \([]\) | \(69120\) | \(1.3312\) |
Rank
sage: E.rank()
The elliptic curves in class 31680cs have rank \(0\).
Complex multiplication
The elliptic curves in class 31680cs do not have complex multiplication.Modular form 31680.2.a.cs
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.
\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.