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SageMath
E = EllipticCurve("r1")
E.isogeny_class()
Elliptic curves in class 39270.r
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
39270.r1 | 39270p2 | \([1, 1, 0, -1787, 9231]\) | \(631650797177401/322548111270\) | \(322548111270\) | \([2]\) | \(67584\) | \(0.90062\) | |
39270.r2 | 39270p1 | \([1, 1, 0, -1437, 20361]\) | \(328523283207001/332616900\) | \(332616900\) | \([2]\) | \(33792\) | \(0.55405\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 39270.r have rank \(1\).
Complex multiplication
The elliptic curves in class 39270.r do not have complex multiplication.Modular form 39270.2.a.r
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.