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SageMath
E = EllipticCurve("h1")
E.isogeny_class()
Elliptic curves in class 18240.h
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
18240.h1 | 18240by2 | \([0, -1, 0, -1601, 25185]\) | \(6929294404/4275\) | \(280166400\) | \([2]\) | \(12288\) | \(0.56341\) | |
18240.h2 | 18240by1 | \([0, -1, 0, -81, 561]\) | \(-3631696/5415\) | \(-88719360\) | \([2]\) | \(6144\) | \(0.21684\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 18240.h have rank \(1\).
Complex multiplication
The elliptic curves in class 18240.h do not have complex multiplication.Modular form 18240.2.a.h
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.