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SageMath
E = EllipticCurve("c1")
E.isogeny_class()
Elliptic curves in class 3927.c
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
3927.c1 | 3927d3 | \([1, 1, 1, -362452, -59804284]\) | \(5265932508006615127873/1510137598013239041\) | \(1510137598013239041\) | \([2]\) | \(46080\) | \(2.1947\) | |
3927.c2 | 3927d2 | \([1, 1, 1, -135247, 18354236]\) | \(273594167224805799793/11903648120953281\) | \(11903648120953281\) | \([2, 2]\) | \(23040\) | \(1.8481\) | |
3927.c3 | 3927d1 | \([1, 1, 1, -133802, 18782534]\) | \(264918160154242157473/536027170833\) | \(536027170833\) | \([4]\) | \(11520\) | \(1.5016\) | \(\Gamma_0(N)\)-optimal |
3927.c4 | 3927d4 | \([1, 1, 1, 68838, 69130584]\) | \(36075142039228937567/2083708275110728497\) | \(-2083708275110728497\) | \([2]\) | \(46080\) | \(2.1947\) |
Rank
sage: E.rank()
The elliptic curves in class 3927.c have rank \(1\).
Complex multiplication
The elliptic curves in class 3927.c do not have complex multiplication.Modular form 3927.2.a.c
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.