Properties

Label 486720ca
Number of curves $2$
Conductor $486720$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("ca1")
 
E.isogeny_class()
 

Elliptic curves in class 486720ca

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
486720.ca2 486720ca1 \([0, 0, 0, 4378452, 3730013872]\) \(40254822716/49359375\) \(-11382488617982976000000\) \([2]\) \(20643840\) \(2.9183\) \(\Gamma_0(N)\)-optimal*
486720.ca1 486720ca2 \([0, 0, 0, -26041548, 35841365872]\) \(4234737878642/1247410125\) \(575316504707331538944000\) \([2]\) \(41287680\) \(3.2649\) \(\Gamma_0(N)\)-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 486720ca1.

Rank

sage: E.rank()
 

The elliptic curves in class 486720ca have rank \(0\).

Complex multiplication

The elliptic curves in class 486720ca do not have complex multiplication.

Modular form 486720.2.a.ca

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