Properties

Label 18496l
Number of curves $2$
Conductor $18496$
CM -4
Rank $0$
Graph

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Show commands for: SageMath
sage: E = EllipticCurve("18496.h1")
 
sage: E.isogeny_class()
 

Elliptic curves in class 18496l

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients Torsion structure Modular degree Optimality
18496.h2 18496l1 [0, 0, 0, 4913, 0] [2] 34816 \(\Gamma_0(N)\)-optimal
18496.h1 18496l2 [0, 0, 0, -19652, 0] [2] 69632  

Rank

sage: E.rank()
 

The elliptic curves in class 18496l have rank \(0\).

Modular form 18496.2.a.h

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

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.

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

Isogeny graph

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

The vertices are labelled with Cremona labels.