Properties

Label 405720do
Number of curves $2$
Conductor $405720$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("do1")
 
E.isogeny_class()
 

Elliptic curves in class 405720do

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
405720.do2 405720do1 \([0, 0, 0, 28077, 6086878]\) \(27871484/198375\) \(-17422186755456000\) \([2]\) \(3096576\) \(1.7980\) \(\Gamma_0(N)\)-optimal*
405720.do1 405720do2 \([0, 0, 0, -377643, 81631942]\) \(33909572018/3234375\) \(568114785504000000\) \([2]\) \(6193152\) \(2.1446\) \(\Gamma_0(N)\)-optimal*
*optimality has not been determined rigorously for conductors over 400000. In this case the optimal curve is certainly one of the 2 curves highlighted, and conditionally curve 405720do1.

Rank

sage: E.rank()
 

The elliptic curves in class 405720do have rank \(0\).

Complex multiplication

The elliptic curves in class 405720do do not have complex multiplication.

Modular form 405720.2.a.do

sage: E.q_eigenform(10)
 
\(q - q^{5} + 6 q^{11} + 4 q^{13} + 2 q^{17} + O(q^{20})\) 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.

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

Isogeny graph

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

The vertices are labelled with Cremona labels.