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Properties

Label 189618.u
Number of curves $2$
Conductor $189618$
CM no
Rank $1$
Graph

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Show commands for: SageMath
sage: E = EllipticCurve("u1")
 
sage: E.isogeny_class()
 

Elliptic curves in class 189618.u

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients Torsion structure Modular degree Optimality
189618.u1 189618be1 [1, 0, 1, -152780, 22790666] [2] 2419200 \(\Gamma_0(N)\)-optimal
189618.u2 189618be2 [1, 0, 1, -44620, 54459914] [2] 4838400  

Rank

sage: E.rank()
 

The elliptic curves in class 189618.u have rank \(1\).

Complex multiplication

The elliptic curves in class 189618.u do not have complex multiplication.

Modular form 189618.2.a.u

sage: E.q_eigenform(10)
 
\( q - q^{2} + q^{3} + q^{4} + 2q^{5} - q^{6} + 4q^{7} - q^{8} + q^{9} - 2q^{10} + q^{11} + q^{12} - 4q^{14} + 2q^{15} + q^{16} - q^{17} - q^{18} + 8q^{19} + O(q^{20}) \)

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.