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SageMath
E = EllipticCurve("d1")
E.isogeny_class()
Elliptic curves in class 770d
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
770.b2 | 770d1 | \([1, 0, 1, 32, 558]\) | \(3789119879/135520000\) | \(-135520000\) | \([2]\) | \(256\) | \(0.24031\) | \(\Gamma_0(N)\)-optimal |
770.b1 | 770d2 | \([1, 0, 1, -848, 9006]\) | \(67324767141241/3368750000\) | \(3368750000\) | \([2]\) | \(512\) | \(0.58688\) |
Rank
sage: E.rank()
The elliptic curves in class 770d have rank \(1\).
Complex multiplication
The elliptic curves in class 770d do not have complex multiplication.Modular form 770.2.a.d
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.