Properties

Label 418950.ir
Number of curves $2$
Conductor $418950$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("ir1")
 
E.isogeny_class()
 

Elliptic curves in class 418950.ir

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
418950.ir1 418950ir2 \([1, -1, 0, -17844192, 29017219216]\) \(468898230633769/5540400\) \(7424665887318750000\) \([2]\) \(26542080\) \(2.7710\) \(\Gamma_0(N)\)-optimal*
418950.ir2 418950ir1 \([1, -1, 0, -1086192, 478345216]\) \(-105756712489/12476160\) \(-16719247627740000000\) \([2]\) \(13271040\) \(2.4244\) \(\Gamma_0(N)\)-optimal*
*optimality has not been determined rigorously for conductors over 400000. In this case the optimal curve is certainly one of the 2 curves highlighted, and conditionally curve 418950.ir1.

Rank

sage: E.rank()
 

The elliptic curves in class 418950.ir have rank \(0\).

Complex multiplication

The elliptic curves in class 418950.ir do not have complex multiplication.

Modular form 418950.2.a.ir

sage: E.q_eigenform(10)
 
\(q - q^{2} + q^{4} - q^{8} + 6 q^{11} + q^{16} - 2 q^{17} + q^{19} + O(q^{20})\) 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.