Properties

Label 1011.a
Number of curves $2$
Conductor $1011$
CM no
Rank $0$
Graph

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

Elliptic curves in class 1011.a

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
1011.a1 1011b2 \([1, 0, 0, -23, 30]\) \(1349232625/340707\) \(340707\) \([2]\) \(112\) \(-0.22862\)  
1011.a2 1011b1 \([1, 0, 0, -8, -9]\) \(57066625/3033\) \(3033\) \([2]\) \(56\) \(-0.57520\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 1011.a have rank \(0\).

Complex multiplication

The elliptic curves in class 1011.a do not have complex multiplication.

Modular form 1011.2.a.a

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