Properties

Label 41280.a
Number of curves $2$
Conductor $41280$
CM no
Rank $2$
Graph

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Show commands: SageMath
E = EllipticCurve("a1")
 
E.isogeny_class()
 

Elliptic curves in class 41280.a

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
41280.a1 41280cb1 \([0, -1, 0, -1441, -20159]\) \(1263214441/29025\) \(7608729600\) \([2]\) \(36864\) \(0.68237\) \(\Gamma_0(N)\)-optimal
41280.a2 41280cb2 \([0, -1, 0, 159, -63999]\) \(1685159/6739605\) \(-1766747013120\) \([2]\) \(73728\) \(1.0289\)  

Rank

sage: E.rank()
 

The elliptic curves in class 41280.a have rank \(2\).

Complex multiplication

The elliptic curves in class 41280.a do not have complex multiplication.

Modular form 41280.2.a.a

sage: E.q_eigenform(10)
 
\(q - q^{3} - q^{5} - 4 q^{7} + q^{9} - 2 q^{11} - 2 q^{13} + q^{15} + 6 q^{19} + O(q^{20})\) 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.