Properties

Label 64400.bj
Number of curves $4$
Conductor $64400$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("bj1")
 
E.isogeny_class()
 

Elliptic curves in class 64400.bj

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
64400.bj1 64400bj4 \([0, 0, 0, -16835075, -26587074750]\) \(8244966675515989329/3081640625\) \(197225000000000000\) \([2]\) \(2211840\) \(2.6698\)  
64400.bj2 64400bj3 \([0, 0, 0, -2207075, 643177250]\) \(18577831198352049/7958740140575\) \(509359368996800000000\) \([2]\) \(2211840\) \(2.6698\)  
64400.bj3 64400bj2 \([0, 0, 0, -1057075, -411372750]\) \(2041085246738049/38897700625\) \(2489452840000000000\) \([2, 2]\) \(1105920\) \(2.3232\)  
64400.bj4 64400bj1 \([0, 0, 0, 925, -18854750]\) \(1367631/2399636575\) \(-153576740800000000\) \([2]\) \(552960\) \(1.9766\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 64400.bj have rank \(1\).

Complex multiplication

The elliptic curves in class 64400.bj do not have complex multiplication.

Modular form 64400.2.a.bj

sage: E.q_eigenform(10)
 
\(q - q^{7} - 3 q^{9} + 4 q^{11} + 2 q^{13} - 6 q^{17} - 4 q^{19} + O(q^{20})\) 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.

\(\left(\begin{array}{rrrr} 1 & 4 & 2 & 4 \\ 4 & 1 & 2 & 4 \\ 2 & 2 & 1 & 2 \\ 4 & 4 & 2 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with LMFDB labels.