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SageMath
E = EllipticCurve("bj1")
E.isogeny_class()
Elliptic curves in class 38808.bj
sage: E.isogeny_class().curves
| LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
|---|---|---|---|---|---|---|---|---|
| 38808.bj1 | 38808be2 | \([0, 0, 0, -197715, -33574898]\) | \(4866277250/43659\) | \(7668660381161472\) | \([2]\) | \(294912\) | \(1.8708\) | |
| 38808.bj2 | 38808be1 | \([0, 0, 0, -3675, -1247834]\) | \(-62500/7623\) | \(-669486223752192\) | \([2]\) | \(147456\) | \(1.5243\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 38808.bj have rank \(0\).
Complex multiplication
The elliptic curves in class 38808.bj do not have complex multiplication.Modular form 38808.2.a.bj
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.
