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SageMath
E = EllipticCurve("i1")
E.isogeny_class()
Elliptic curves in class 51520.i
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
51520.i1 | 51520ca4 | \([0, 1, 0, -10677185, 13425075775]\) | \(513516182162686336369/1944885031250\) | \(509839941632000000\) | \([2]\) | \(2875392\) | \(2.6123\) | |
51520.i2 | 51520ca3 | \([0, 1, 0, -677185, 203075775]\) | \(131010595463836369/7704101562500\) | \(2019584000000000000\) | \([2]\) | \(1437696\) | \(2.2658\) | |
51520.i3 | 51520ca2 | \([0, 1, 0, -181825, 3135423]\) | \(2535986675931409/1450751712200\) | \(380305856842956800\) | \([2]\) | \(958464\) | \(2.0630\) | |
51520.i4 | 51520ca1 | \([0, 1, 0, -117825, -15539777]\) | \(690080604747409/3406760000\) | \(893061693440000\) | \([2]\) | \(479232\) | \(1.7165\) | \(\Gamma_0(N)\)-optimal |
Rank
sage: E.rank()
The elliptic curves in class 51520.i have rank \(1\).
Complex multiplication
The elliptic curves in class 51520.i do not have complex multiplication.Modular form 51520.2.a.i
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 3 & 6 \\ 2 & 1 & 6 & 3 \\ 3 & 6 & 1 & 2 \\ 6 & 3 & 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.