Properties

Label 418950.pt
Number of curves $4$
Conductor $418950$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("pt1")
 
E.isogeny_class()
 

Elliptic curves in class 418950.pt

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
418950.pt1 418950pt3 \([1, -1, 1, -33516230, 74692943147]\) \(3107086841064961/570\) \(763854515156250\) \([2]\) \(21233664\) \(2.6915\) \(\Gamma_0(N)\)-optimal*
418950.pt2 418950pt4 \([1, -1, 1, -2425730, 774287147]\) \(1177918188481/488703750\) \(654909764932089843750\) \([2]\) \(21233664\) \(2.6915\)  
418950.pt3 418950pt2 \([1, -1, 1, -2094980, 1167218147]\) \(758800078561/324900\) \(435397073639062500\) \([2, 2]\) \(10616832\) \(2.3449\) \(\Gamma_0(N)\)-optimal*
418950.pt4 418950pt1 \([1, -1, 1, -110480, 24146147]\) \(-111284641/123120\) \(-164992575273750000\) \([2]\) \(5308416\) \(1.9983\) \(\Gamma_0(N)\)-optimal*
*optimality has not been determined rigorously for conductors over 400000. In this case the optimal curve is certainly one of the 3 curves highlighted, and conditionally curve 418950.pt1.

Rank

sage: E.rank()
 

The elliptic curves in class 418950.pt have rank \(1\).

Complex multiplication

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

Modular form 418950.2.a.pt

sage: E.q_eigenform(10)
 
\(q + q^{2} + q^{4} + q^{8} + 4 q^{11} - 2 q^{13} + q^{16} + 2 q^{17} + q^{19} + O(q^{20})\) 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.

\(\left(\begin{array}{rrrr} 1 & 4 & 2 & 4 \\ 4 & 1 & 2 & 4 \\ 2 & 2 & 1 & 2 \\ 4 & 4 & 2 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with LMFDB labels.