Properties

Label 123840.z
Number of curves $2$
Conductor $123840$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("z1")
 
E.isogeny_class()
 

Elliptic curves in class 123840.z

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
123840.z1 123840du1 \([0, 0, 0, -1188, -6912]\) \(2299968/1075\) \(86668185600\) \([2]\) \(98304\) \(0.79318\) \(\Gamma_0(N)\)-optimal
123840.z2 123840du2 \([0, 0, 0, 4212, -52272]\) \(12812904/9245\) \(-5962771169280\) \([2]\) \(196608\) \(1.1398\)  

Rank

sage: E.rank()
 

The elliptic curves in class 123840.z have rank \(1\).

Complex multiplication

The elliptic curves in class 123840.z do not have complex multiplication.

Modular form 123840.2.a.z

sage: E.q_eigenform(10)
 
\(q - q^{5} - 2 q^{7} + 2 q^{13} + 6 q^{17} - 6 q^{19} + O(q^{20})\) 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 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.