Properties

Label 494190fw
Number of curves $2$
Conductor $494190$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("fw1")
 
E.isogeny_class()
 

Elliptic curves in class 494190fw

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
494190.fw2 494190fw1 \([1, -1, 1, 210193, -25683209]\) \(2161700757/1848320\) \(-878136408045296640\) \([2]\) \(8847360\) \(2.1306\) \(\Gamma_0(N)\)-optimal*
494190.fw1 494190fw2 \([1, -1, 1, -1038287, -225939401]\) \(260549802603/104256800\) \(49532381766305013600\) \([2]\) \(17694720\) \(2.4772\) \(\Gamma_0(N)\)-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 494190fw1.

Rank

sage: E.rank()
 

The elliptic curves in class 494190fw have rank \(0\).

Complex multiplication

The elliptic curves in class 494190fw do not have complex multiplication.

Modular form 494190.2.a.fw

sage: E.q_eigenform(10)
 
\(q + q^{2} + q^{4} + q^{5} + 2 q^{7} + q^{8} + q^{10} - 2 q^{11} - 4 q^{13} + 2 q^{14} + q^{16} + q^{19} + O(q^{20})\) 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 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.