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SageMath
E = EllipticCurve("bs1")
E.isogeny_class()
Elliptic curves in class 23400.bs
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 23400.bs1 | 23400x2 | \([0, 0, 0, -2115, -36450]\) | \(5606442/169\) | \(31539456000\) | \([2]\) | \(20480\) | \(0.79096\) | |
| 23400.bs2 | 23400x1 | \([0, 0, 0, -315, 1350]\) | \(37044/13\) | \(1213056000\) | \([2]\) | \(10240\) | \(0.44439\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 23400.bs have rank \(0\).
Complex multiplication
The elliptic curves in class 23400.bs do not have complex multiplication.Modular form 23400.2.a.bs
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.
