Properties

Label 5520.bd
Number of curves $2$
Conductor $5520$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("bd1")
 
E.isogeny_class()
 

Elliptic curves in class 5520.bd

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
5520.bd1 5520j2 \([0, 1, 0, -960, 9108]\) \(47825527682/8926875\) \(18282240000\) \([2]\) \(4608\) \(0.68713\)  
5520.bd2 5520j1 \([0, 1, 0, 120, 900]\) \(185073116/419175\) \(-429235200\) \([2]\) \(2304\) \(0.34056\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 5520.bd have rank \(1\).

Complex multiplication

The elliptic curves in class 5520.bd do not have complex multiplication.

Modular form 5520.2.a.bd

sage: E.q_eigenform(10)
 
\(q + q^{3} + q^{5} - 2 q^{7} + q^{9} + 2 q^{11} + 2 q^{13} + q^{15} - 8 q^{17} - 4 q^{19} + O(q^{20})\) 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 LMFDB numbering.

\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)

Isogeny graph

sage: E.isogeny_graph().plot(edge_labels=True)
 

The vertices are labelled with LMFDB labels.