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SageMath
E = EllipticCurve("j1")
E.isogeny_class()
Elliptic curves in class 4002j
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
4002.i2 | 4002j1 | \([1, 1, 1, -109, -10333]\) | \(-143301984337/45635862528\) | \(-45635862528\) | \([2]\) | \(3456\) | \(0.72451\) | \(\Gamma_0(N)\)-optimal |
4002.i1 | 4002j2 | \([1, 1, 1, -7789, -265309]\) | \(52260349338689617/574696932864\) | \(574696932864\) | \([2]\) | \(6912\) | \(1.0711\) |
Rank
sage: E.rank()
The elliptic curves in class 4002j have rank \(1\).
Complex multiplication
The elliptic curves in class 4002j do not have complex multiplication.Modular form 4002.2.a.j
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.