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SageMath
E = EllipticCurve("b1")
E.isogeny_class()
Elliptic curves in class 2100.b
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 2100.b1 | 2100a1 | \([0, -1, 0, -16458, 872037]\) | \(-3155449600/250047\) | \(-39069843750000\) | \([]\) | \(6480\) | \(1.3549\) | \(\Gamma_0(N)\)-optimal |
| 2100.b2 | 2100a2 | \([0, -1, 0, 96042, 309537]\) | \(627021958400/363182463\) | \(-56747259843750000\) | \([]\) | \(19440\) | \(1.9042\) |
Rank
sage: E.rank()
The elliptic curves in class 2100.b have rank \(0\).
Complex multiplication
The elliptic curves in class 2100.b do not have complex multiplication.Modular form 2100.2.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 LMFDB 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 LMFDB labels.
