Show commands:
SageMath
E = EllipticCurve("y1")
E.isogeny_class()
Elliptic curves in class 3648.y
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
3648.y1 | 3648be2 | \([0, 1, 0, -17561, 889893]\) | \(-9358714467168256/22284891\) | \(-1426233024\) | \([]\) | \(4800\) | \(0.99798\) | |
3648.y2 | 3648be1 | \([0, 1, 0, 79, 333]\) | \(841232384/1121931\) | \(-71803584\) | \([]\) | \(960\) | \(0.19326\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 3648.y have rank \(1\).
Complex multiplication
The elliptic curves in class 3648.y do not have complex multiplication.Modular form 3648.2.a.y
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.
\(\left(\begin{array}{rr} 1 & 5 \\ 5 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.