Properties

Label 400710bb
Number of curves $2$
Conductor $400710$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("bb1")
 
E.isogeny_class()
 

Elliptic curves in class 400710bb

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
400710.bb2 400710bb1 \([1, 1, 1, 45659, 10268363]\) \(223759095911/1094104800\) \(-51473124222328800\) \([]\) \(5171040\) \(1.8889\) \(\Gamma_0(N)\)-optimal*
400710.bb1 400710bb2 \([1, 1, 1, -2558956, 1576483469]\) \(-39390416456458249/56832000000\) \(-2673711508992000000\) \([]\) \(15513120\) \(2.4382\) \(\Gamma_0(N)\)-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 400710bb1.

Rank

sage: E.rank()
 

The elliptic curves in class 400710bb have rank \(1\).

Complex multiplication

The elliptic curves in class 400710bb do not have complex multiplication.

Modular form 400710.2.a.bb

sage: E.q_eigenform(10)
 
\(q + q^{2} - q^{3} + q^{4} - q^{5} - q^{6} - q^{7} + q^{8} + q^{9} - q^{10} + 3 q^{11} - q^{12} + 7 q^{13} - q^{14} + q^{15} + q^{16} - 3 q^{17} + q^{18} + O(q^{20})\) 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.

\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with Cremona labels.