Properties

Label 1568.a
Number of curves $2$
Conductor $1568$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("a1")
 
E.isogeny_class()
 

Elliptic curves in class 1568.a

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
1568.a1 1568f2 \([0, 1, 0, -3544, -82104]\) \(238328\) \(20661046784\) \([2]\) \(1792\) \(0.83391\)  
1568.a2 1568f1 \([0, 1, 0, -114, -2528]\) \(-64\) \(-2582630848\) \([2]\) \(896\) \(0.48734\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 1568.a have rank \(0\).

Complex multiplication

The elliptic curves in class 1568.a do not have complex multiplication.

Modular form 1568.2.a.a

sage: E.q_eigenform(10)
 
\(q - 2 q^{3} - 2 q^{5} + q^{9} + 4 q^{11} - 6 q^{13} + 4 q^{15} + 4 q^{17} - 6 q^{19} + O(q^{20})\) 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.

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

Isogeny graph

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

The vertices are labelled with LMFDB labels.