Properties

Label 23826r
Number of curves $4$
Conductor $23826$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("r1")
 
E.isogeny_class()
 

Elliptic curves in class 23826r

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
23826.u4 23826r1 \([1, 0, 1, -730, -196]\) \(912673/528\) \(24840225168\) \([2]\) \(27648\) \(0.68412\) \(\Gamma_0(N)\)-optimal
23826.u2 23826r2 \([1, 0, 1, -7950, 271276]\) \(1180932193/4356\) \(204931857636\) \([2, 2]\) \(55296\) \(1.0307\)  
23826.u3 23826r3 \([1, 0, 1, -4340, 519644]\) \(-192100033/2371842\) \(-111585396482802\) \([2]\) \(110592\) \(1.3773\)  
23826.u1 23826r4 \([1, 0, 1, -127080, 17425996]\) \(4824238966273/66\) \(3105028146\) \([2]\) \(110592\) \(1.3773\)  

Rank

sage: E.rank()
 

The elliptic curves in class 23826r have rank \(1\).

Complex multiplication

The elliptic curves in class 23826r do not have complex multiplication.

Modular form 23826.2.a.r

sage: E.q_eigenform(10)
 
\(q - q^{2} + q^{3} + q^{4} + 2 q^{5} - q^{6} - 4 q^{7} - q^{8} + q^{9} - 2 q^{10} - q^{11} + q^{12} + 6 q^{13} + 4 q^{14} + 2 q^{15} + q^{16} + 2 q^{17} - q^{18} + O(q^{20})\) 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.