Properties

Label 248256.f
Number of curves $2$
Conductor $248256$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("f1")
 
E.isogeny_class()
 

Elliptic curves in class 248256.f

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
248256.f1 248256f2 \([0, 0, 0, -41484, -24026096]\) \(-41314084993/1281007856\) \(-244804413560979456\) \([]\) \(2488320\) \(2.0170\)  
248256.f2 248256f1 \([0, 0, 0, 4596, 875536]\) \(56181887/1765376\) \(-337368607358976\) \([]\) \(829440\) \(1.4677\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 248256.f have rank \(1\).

Complex multiplication

The elliptic curves in class 248256.f do not have complex multiplication.

Modular form 248256.2.a.f

sage: E.q_eigenform(10)
 
\(q - 3 q^{5} - 2 q^{7} - 3 q^{11} - 2 q^{13} - 6 q^{17} + 5 q^{19} + O(q^{20})\) 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.

\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with LMFDB labels.