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SageMath
E = EllipticCurve("y1")
E.isogeny_class()
Elliptic curves in class 12480.y
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
12480.y1 | 12480m3 | \([0, -1, 0, -6625, -204575]\) | \(490757540836/2142075\) | \(140383027200\) | \([2]\) | \(24576\) | \(0.99189\) | |
12480.y2 | 12480m2 | \([0, -1, 0, -625, 625]\) | \(1650587344/950625\) | \(15575040000\) | \([2, 2]\) | \(12288\) | \(0.64532\) | |
12480.y3 | 12480m1 | \([0, -1, 0, -445, 3757]\) | \(9538484224/26325\) | \(26956800\) | \([2]\) | \(6144\) | \(0.29875\) | \(\Gamma_0(N)\)-optimal |
12480.y4 | 12480m4 | \([0, -1, 0, 2495, 2497]\) | \(26198797244/15234375\) | \(-998400000000\) | \([2]\) | \(24576\) | \(0.99189\) |
Rank
sage: E.rank()
The elliptic curves in class 12480.y have rank \(2\).
Complex multiplication
The elliptic curves in class 12480.y do not have complex multiplication.Modular form 12480.2.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 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.