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SageMath
E = EllipticCurve("y1")
E.isogeny_class()
Elliptic curves in class 76230y
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
76230.n4 | 76230y1 | \([1, -1, 0, -31785, -23073715]\) | \(-2749884201/176619520\) | \(-228098452780154880\) | \([2]\) | \(983040\) | \(2.0105\) | \(\Gamma_0(N)\)-optimal |
76230.n3 | 76230y2 | \([1, -1, 0, -1425705, -650616499]\) | \(248158561089321/1859334400\) | \(2401270821259833600\) | \([2, 2]\) | \(1966080\) | \(2.3571\) | |
76230.n2 | 76230y3 | \([1, -1, 0, -2384025, 334728125]\) | \(1160306142246441/634128110000\) | \(818956142307508590000\) | \([2]\) | \(3932160\) | \(2.7036\) | |
76230.n1 | 76230y4 | \([1, -1, 0, -22770105, -41815426339]\) | \(1010962818911303721/57392720\) | \(74120859533785680\) | \([2]\) | \(3932160\) | \(2.7036\) |
Rank
sage: E.rank()
The elliptic curves in class 76230y have rank \(1\).
Complex multiplication
The elliptic curves in class 76230y do not have complex multiplication.Modular form 76230.2.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.