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SageMath
E = EllipticCurve("di1")
E.isogeny_class()
Elliptic curves in class 164730di
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
164730.l1 | 164730di1 | \([1, 1, 0, -2630798, 1641305952]\) | \(409863944170874967353/742829700\) | \(3649522316100\) | \([2]\) | \(2723840\) | \(2.0960\) | \(\Gamma_0(N)\)-optimal |
164730.l2 | 164730di2 | \([1, 1, 0, -2629948, 1642420642]\) | \(-409466796536364790553/551795963202090\) | \(-2710973567211868170\) | \([2]\) | \(5447680\) | \(2.4425\) |
Rank
sage: E.rank()
The elliptic curves in class 164730di have rank \(1\).
Complex multiplication
The elliptic curves in class 164730di do not have complex multiplication.Modular form 164730.2.a.di
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.