Properties

Label 1190a
Number of curves $2$
Conductor $1190$
CM no
Rank $1$
Graph

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

Elliptic curves in class 1190a

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
1190.a2 1190a1 \([1, -1, 0, -145, -2979]\) \(-338463151209/3731840000\) \(-3731840000\) \([2]\) \(480\) \(0.51871\) \(\Gamma_0(N)\)-optimal
1190.a1 1190a2 \([1, -1, 0, -4145, -101379]\) \(7876916680687209/27200448800\) \(27200448800\) \([2]\) \(960\) \(0.86528\)  

Rank

sage: E.rank()
 

The elliptic curves in class 1190a have rank \(1\).

Complex multiplication

The elliptic curves in class 1190a do not have complex multiplication.

Modular form 1190.2.a.a

sage: E.q_eigenform(10)
 
\(q - q^{2} + q^{4} - q^{5} + q^{7} - q^{8} - 3 q^{9} + q^{10} + 2 q^{11} - q^{14} + q^{16} + q^{17} + 3 q^{18} - 6 q^{19} + O(q^{20})\) 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 Cremona 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 Cremona labels.