Properties

Label 1936.a
Number of curves $2$
Conductor $1936$
CM no
Rank $1$
Graph

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

Elliptic curves in class 1936.a

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
1936.a1 1936l2 \([0, 1, 0, -4880, -514604]\) \(-121\) \(-106239691165696\) \([]\) \(4224\) \(1.3741\)  
1936.a2 1936l1 \([0, 1, 0, -480, 3892]\) \(-24729001\) \(-495616\) \([]\) \(384\) \(0.17519\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 1936.a have rank \(1\).

Complex multiplication

The elliptic curves in class 1936.a do not have complex multiplication.

Modular form 1936.2.a.a

sage: E.q_eigenform(10)
 
\(q - 2 q^{3} + q^{5} - 2 q^{7} + q^{9} - q^{13} - 2 q^{15} + 5 q^{17} + 6 q^{19} + O(q^{20})\) 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.

\(\left(\begin{array}{rr} 1 & 11 \\ 11 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with LMFDB labels.