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SageMath
E = EllipticCurve("a1")
E.isogeny_class()
Elliptic curves in class 2235.a
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
2235.a1 | 2235f2 | \([0, 1, 1, -3470, -94654]\) | \(-4622078183550976/1101596636235\) | \(-1101596636235\) | \([]\) | \(4000\) | \(1.0295\) | |
2235.a2 | 2235f1 | \([0, 1, 1, -20, 506]\) | \(-929714176/113146875\) | \(-113146875\) | \([5]\) | \(800\) | \(0.22481\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 2235.a have rank \(1\).
Complex multiplication
The elliptic curves in class 2235.a do not have complex multiplication.Modular form 2235.2.a.a
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.