Properties

Label 87360ek
Number of curves $4$
Conductor $87360$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("ek1")
 
E.isogeny_class()
 

Elliptic curves in class 87360ek

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
87360.g3 87360ek1 \([0, -1, 0, -39436, 3027490]\) \(105982296177768256/2395575\) \(153316800\) \([2]\) \(147456\) \(1.0949\) \(\Gamma_0(N)\)-optimal
87360.g2 87360ek2 \([0, -1, 0, -39481, 3020281]\) \(1661648641672384/7872125625\) \(32244226560000\) \([2, 2]\) \(294912\) \(1.4414\)  
87360.g4 87360ek3 \([0, -1, 0, -19201, 6098785]\) \(-23892848985608/475510546875\) \(-15581529600000000\) \([2]\) \(589824\) \(1.7880\)  
87360.g1 87360ek4 \([0, -1, 0, -60481, -520319]\) \(746685723047048/428258628525\) \(14033178739507200\) \([2]\) \(589824\) \(1.7880\)  

Rank

sage: E.rank()
 

The elliptic curves in class 87360ek have rank \(1\).

Complex multiplication

The elliptic curves in class 87360ek do not have complex multiplication.

Modular form 87360.2.a.ek

sage: E.q_eigenform(10)
 
\(q - q^{3} - q^{5} - q^{7} + q^{9} - 4 q^{11} + q^{13} + q^{15} + 6 q^{17} + 4 q^{19} + O(q^{20})\) 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.

\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with Cremona labels.