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SageMath
E = EllipticCurve("j1")
E.isogeny_class()
Elliptic curves in class 4018.j
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
4018.j1 | 4018f2 | \([1, 1, 0, -564, 4838]\) | \(169112377/3362\) | \(395535938\) | \([2]\) | \(2304\) | \(0.44138\) | |
4018.j2 | 4018f1 | \([1, 1, 0, -74, -160]\) | \(389017/164\) | \(19294436\) | \([2]\) | \(1152\) | \(0.094801\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 4018.j have rank \(1\).
Complex multiplication
The elliptic curves in class 4018.j do not have complex multiplication.Modular form 4018.2.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.