Properties

Label 20160h
Number of curves $4$
Conductor $20160$
CM no
Rank $0$
Graph

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Show commands for: SageMath
sage: E = EllipticCurve("20160.bx1")
 
sage: E.isogeny_class()
 

Elliptic curves in class 20160h

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients Torsion structure Modular degree Optimality
20160.bx3 20160h1 [0, 0, 0, -2988, 55088] [2] 18432 \(\Gamma_0(N)\)-optimal
20160.bx4 20160h2 [0, 0, 0, 4692, 291632] [2] 36864  
20160.bx1 20160h3 [0, 0, 0, -60588, -5733072] [2] 55296  
20160.bx2 20160h4 [0, 0, 0, -43308, -9071568] [2] 110592  

Rank

sage: E.rank()
 

The elliptic curves in class 20160h have rank \(0\).

Modular form 20160.2.a.bx

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

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 Cremona numbering.

\(\left(\begin{array}{rrrr} 1 & 2 & 3 & 6 \\ 2 & 1 & 6 & 3 \\ 3 & 6 & 1 & 2 \\ 6 & 3 & 2 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with Cremona labels.