Properties

Label 38850bj
Number of curves $4$
Conductor $38850$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("bj1")
 
E.isogeny_class()
 

Elliptic curves in class 38850bj

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
38850.bn4 38850bj1 \([1, 0, 1, 1999, 28148]\) \(56578878719/54390000\) \(-849843750000\) \([2]\) \(61440\) \(0.97612\) \(\Gamma_0(N)\)-optimal
38850.bn3 38850bj2 \([1, 0, 1, -10501, 253148]\) \(8194759433281/2958272100\) \(46223001562500\) \([2, 2]\) \(122880\) \(1.3227\)  
38850.bn2 38850bj3 \([1, 0, 1, -71751, -7219352]\) \(2614441086442081/74385450090\) \(1162272657656250\) \([2]\) \(245760\) \(1.6693\)  
38850.bn1 38850bj4 \([1, 0, 1, -149251, 22175648]\) \(23531588875176481/6398929110\) \(99983267343750\) \([2]\) \(245760\) \(1.6693\)  

Rank

sage: E.rank()
 

The elliptic curves in class 38850bj have rank \(1\).

Complex multiplication

The elliptic curves in class 38850bj do not have complex multiplication.

Modular form 38850.2.a.bj

sage: E.q_eigenform(10)
 
\(q - q^{2} + q^{3} + q^{4} - q^{6} + q^{7} - q^{8} + q^{9} + q^{12} + 2 q^{13} - q^{14} + q^{16} - 2 q^{17} - q^{18} + O(q^{20})\) 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.