Properties

Label 222768dx
Number of curves $4$
Conductor $222768$
CM no
Rank $2$
Graph

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Show commands: 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)
 
\(q - 2 q^{5} - q^{7} - 4 q^{11} + q^{13} + q^{17} + 4 q^{19} + O(q^{20})\) Copy content Toggle raw display

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.