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SageMath
E = EllipticCurve("j1")
E.isogeny_class()
Elliptic curves in class 25480.j
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
25480.j1 | 25480n1 | \([0, 0, 0, -662627, -207610354]\) | \(267080942160036/1990625\) | \(239815721600000\) | \([2]\) | \(215040\) | \(1.9352\) | \(\Gamma_0(N)\)-optimal |
25480.j2 | 25480n2 | \([0, 0, 0, -648907, -216618906]\) | \(-125415986034978/11552734375\) | \(-2783575340000000000\) | \([2]\) | \(430080\) | \(2.2818\) |
Rank
sage: E.rank()
The elliptic curves in class 25480.j have rank \(0\).
Complex multiplication
The elliptic curves in class 25480.j do not have complex multiplication.Modular form 25480.2.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 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.