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SageMath
E = EllipticCurve("dq1")
E.isogeny_class()
Elliptic curves in class 123840dq
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
123840.dj2 | 123840dq1 | \([0, 0, 0, -4428, 4752]\) | \(1860867/1075\) | \(5546763878400\) | \([2]\) | \(196608\) | \(1.1349\) | \(\Gamma_0(N)\)-optimal |
123840.dj1 | 123840dq2 | \([0, 0, 0, -47628, -3986928]\) | \(2315685267/9245\) | \(47702169354240\) | \([2]\) | \(393216\) | \(1.4814\) |
Rank
sage: E.rank()
The elliptic curves in class 123840dq have rank \(0\).
Complex multiplication
The elliptic curves in class 123840dq do not have complex multiplication.Modular form 123840.2.a.dq
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.