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SageMath
E = EllipticCurve("ch1")
E.isogeny_class()
Elliptic curves in class 9408.ch
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
9408.ch1 | 9408ba1 | \([0, 1, 0, -408, 2862]\) | \(1000000/63\) | \(474360768\) | \([2]\) | \(3072\) | \(0.41584\) | \(\Gamma_0(N)\)-optimal |
9408.ch2 | 9408ba2 | \([0, 1, 0, 327, 12711]\) | \(8000/147\) | \(-70837874688\) | \([2]\) | \(6144\) | \(0.76241\) |
Rank
sage: E.rank()
The elliptic curves in class 9408.ch have rank \(1\).
Complex multiplication
The elliptic curves in class 9408.ch do not have complex multiplication.Modular form 9408.2.a.ch
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.