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SageMath
E = EllipticCurve("y1")
E.isogeny_class()
Elliptic curves in class 34650y
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
34650.bl4 | 34650y1 | \([1, -1, 0, 57708, -7118384]\) | \(1865864036231/2993760000\) | \(-34100797500000000\) | \([2]\) | \(245760\) | \(1.8575\) | \(\Gamma_0(N)\)-optimal |
34650.bl3 | 34650y2 | \([1, -1, 0, -392292, -72368384]\) | \(586145095611769/140040608400\) | \(1595150055056250000\) | \([2, 2]\) | \(491520\) | \(2.2041\) | |
34650.bl2 | 34650y3 | \([1, -1, 0, -2124792, 1131719116]\) | \(93137706732176569/5369647977540\) | \(61163646494166562500\) | \([2]\) | \(983040\) | \(2.5507\) | |
34650.bl1 | 34650y4 | \([1, -1, 0, -5859792, -5457855884]\) | \(1953542217204454969/170843779260\) | \(1946017423133437500\) | \([2]\) | \(983040\) | \(2.5507\) |
Rank
sage: E.rank()
The elliptic curves in class 34650y have rank \(1\).
Complex multiplication
The elliptic curves in class 34650y do not have complex multiplication.Modular form 34650.2.a.y
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.