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SageMath
sage: E = EllipticCurve("x1")
sage: E.isogeny_class()
Elliptic curves in class 107712x
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | Torsion structure | Modular degree | Optimality |
---|---|---|---|---|---|
107712.dn2 | 107712x1 | [0, 0, 0, -6924, -179728] | [2] | 147456 | \(\Gamma_0(N)\)-optimal |
107712.dn1 | 107712x2 | [0, 0, 0, -104844, -13066000] | [2] | 294912 |
Rank
sage: E.rank()
The elliptic curves in class 107712x have rank \(2\).
Complex multiplication
The elliptic curves in class 107712x do not have complex multiplication.Modular form 107712.2.a.x
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.
\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.