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SageMath
E = EllipticCurve("d1")
E.isogeny_class()
Elliptic curves in class 121680.d
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
121680.d1 | 121680eb1 | \([0, 0, 0, -24843, 320762]\) | \(117649/65\) | \(936830338928640\) | \([2]\) | \(516096\) | \(1.5633\) | \(\Gamma_0(N)\)-optimal |
121680.d2 | 121680eb2 | \([0, 0, 0, 96837, 2535338]\) | \(6967871/4225\) | \(-60893972030361600\) | \([2]\) | \(1032192\) | \(1.9099\) |
Rank
sage: E.rank()
The elliptic curves in class 121680.d have rank \(1\).
Complex multiplication
The elliptic curves in class 121680.d do not have complex multiplication.Modular form 121680.2.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 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.