Properties

Label 1682.b
Number of curves $2$
Conductor $1682$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("b1")
 
E.isogeny_class()
 

Elliptic curves in class 1682.b

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
1682.b1 1682d2 \([1, 0, 1, -124486, -16915536]\) \(426477625/8\) \(4001971303688\) \([]\) \(8700\) \(1.5425\)  
1682.b2 1682d1 \([1, 0, 1, -2541, 10430]\) \(3625/2\) \(1000492825922\) \([3]\) \(2900\) \(0.99318\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 1682.b have rank \(0\).

Complex multiplication

The elliptic curves in class 1682.b do not have complex multiplication.

Modular form 1682.2.a.b

sage: E.q_eigenform(10)
 
\(q - q^{2} - 2 q^{3} + q^{4} + 2 q^{6} - q^{7} - q^{8} + q^{9} - 6 q^{11} - 2 q^{12} - 4 q^{13} + q^{14} + q^{16} - 3 q^{17} - q^{18} - 4 q^{19} + O(q^{20})\) 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.

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

Isogeny graph

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

The vertices are labelled with LMFDB labels.