Properties

Label 134640bm
Number of curves $4$
Conductor $134640$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("bm1")
 
E.isogeny_class()
 

Elliptic curves in class 134640bm

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
134640.ft4 134640bm1 \([0, 0, 0, -23907, 7938146]\) \(-506071034209/8823767040\) \(-26347627201167360\) \([2]\) \(983040\) \(1.8320\) \(\Gamma_0(N)\)-optimal
134640.ft3 134640bm2 \([0, 0, 0, -761187, 254632034]\) \(16334668434139489/72511718400\) \(216518830954905600\) \([2, 2]\) \(1966080\) \(2.1786\)  
134640.ft1 134640bm3 \([0, 0, 0, -12165987, 16333119074]\) \(66692696957462376289/1322972640\) \(3950375135477760\) \([2]\) \(3932160\) \(2.5251\)  
134640.ft2 134640bm4 \([0, 0, 0, -1152867, -35446174]\) \(56751044592329569/32660264340000\) \(97523026755010560000\) \([2]\) \(3932160\) \(2.5251\)  

Rank

sage: E.rank()
 

The elliptic curves in class 134640bm have rank \(1\).

Complex multiplication

The elliptic curves in class 134640bm do not have complex multiplication.

Modular form 134640.2.a.bm

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