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SageMath
E = EllipticCurve("y1")
E.isogeny_class()
Elliptic curves in class 288834y
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
288834.y3 | 288834y1 | \([1, 0, 1, -29900, 1932554]\) | \(19968681097/628992\) | \(93113389893888\) | \([2]\) | \(1182720\) | \(1.4552\) | \(\Gamma_0(N)\)-optimal |
288834.y2 | 288834y2 | \([1, 0, 1, -72220, -4770934]\) | \(281397674377/96589584\) | \(14298724935580176\) | \([2, 2]\) | \(2365440\) | \(1.8018\) | |
288834.y4 | 288834y3 | \([1, 0, 1, 213440, -33108406]\) | \(7264187703863/7406095788\) | \(-1096367973995735532\) | \([2]\) | \(4730880\) | \(2.1484\) | |
288834.y1 | 288834y4 | \([1, 0, 1, -1035000, -405287414]\) | \(828279937799497/193444524\) | \(28636732082521836\) | \([2]\) | \(4730880\) | \(2.1484\) |
Rank
sage: E.rank()
The elliptic curves in class 288834y have rank \(1\).
Complex multiplication
The elliptic curves in class 288834y do not have complex multiplication.Modular form 288834.2.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.