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SageMath
E = EllipticCurve("dx1")
E.isogeny_class()
Elliptic curves in class 222768dx
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
222768.z4 | 222768dx1 | \([0, 0, 0, 2454, 141451]\) | \(140119918592/822139227\) | \(-9589431943728\) | \([2]\) | \(393216\) | \(1.1729\) | \(\Gamma_0(N)\)-optimal |
222768.z3 | 222768dx2 | \([0, 0, 0, -30351, 1840750]\) | \(16568196345808/1744649361\) | \(325593442347264\) | \([2, 2]\) | \(786432\) | \(1.5195\) | |
222768.z1 | 222768dx3 | \([0, 0, 0, -472611, 125054386]\) | \(15638954062612612/205211097\) | \(153189263066112\) | \([4]\) | \(1572864\) | \(1.8661\) | |
222768.z2 | 222768dx4 | \([0, 0, 0, -112971, -12617750]\) | \(213597982529572/31475907099\) | \(23496638745775104\) | \([2]\) | \(1572864\) | \(1.8661\) |
Rank
sage: E.rank()
The elliptic curves in class 222768dx have rank \(2\).
Complex multiplication
The elliptic curves in class 222768dx do not have complex multiplication.Modular form 222768.2.a.dx
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.