Properties

Label 22848bu
Number of curves $4$
Conductor $22848$
CM no
Rank $2$
Graph

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Show commands: SageMath
E = EllipticCurve("bu1")
 
E.isogeny_class()
 

Elliptic curves in class 22848bu

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
22848.e4 22848bu1 \([0, -1, 0, 111, 369]\) \(9148592/9639\) \(-157925376\) \([2]\) \(6144\) \(0.25985\) \(\Gamma_0(N)\)-optimal
22848.e3 22848bu2 \([0, -1, 0, -609, 3969]\) \(381775972/127449\) \(8352497664\) \([2, 2]\) \(12288\) \(0.60642\)  
22848.e2 22848bu3 \([0, -1, 0, -3969, -92127]\) \(52767497666/1753941\) \(229892554752\) \([2]\) \(24576\) \(0.95300\)  
22848.e1 22848bu4 \([0, -1, 0, -8769, 318945]\) \(569001644066/122451\) \(16049897472\) \([2]\) \(24576\) \(0.95300\)  

Rank

sage: E.rank()
 

The elliptic curves in class 22848bu have rank \(2\).

Complex multiplication

The elliptic curves in class 22848bu do not have complex multiplication.

Modular form 22848.2.a.bu

sage: E.q_eigenform(10)
 
\(q - q^{3} - 2 q^{5} - q^{7} + q^{9} - 4 q^{11} - 2 q^{13} + 2 q^{15} - q^{17} - 4 q^{19} + O(q^{20})\) 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.