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SageMath
E = EllipticCurve("e1")
E.isogeny_class()
Elliptic curves in class 874e
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
874.d2 | 874e1 | \([1, 1, 1, -410, 903]\) | \(7623273198241/3913296544\) | \(3913296544\) | \([5]\) | \(400\) | \(0.53285\) | \(\Gamma_0(N)\)-optimal |
874.d1 | 874e2 | \([1, 1, 1, -142320, -20724857]\) | \(318802492415278298881/113900554\) | \(113900554\) | \([]\) | \(2000\) | \(1.3376\) |
Rank
sage: E.rank()
The elliptic curves in class 874e have rank \(1\).
Complex multiplication
The elliptic curves in class 874e do not have complex multiplication.Modular form 874.2.a.e
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.
\(\left(\begin{array}{rr} 1 & 5 \\ 5 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.