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SageMath
E = EllipticCurve("a1")
E.isogeny_class()
Elliptic curves in class 462a
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
462.b2 | 462a1 | \([1, 1, 0, 5, -23]\) | \(9938375/274428\) | \(-274428\) | \([2]\) | \(64\) | \(-0.27636\) | \(\Gamma_0(N)\)-optimal |
462.b1 | 462a2 | \([1, 1, 0, -105, -441]\) | \(129938649625/7072758\) | \(7072758\) | \([2]\) | \(128\) | \(0.070209\) |
Rank
sage: E.rank()
The elliptic curves in class 462a have rank \(1\).
Complex multiplication
The elliptic curves in class 462a do not have complex multiplication.Modular form 462.2.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 Cremona 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 Cremona labels.