Properties

Label 439569.ch
Number of curves $2$
Conductor $439569$
CM no
Rank $0$
Graph

Related objects

Downloads

Learn more

Show commands: SageMath
E = EllipticCurve("ch1")
 
E.isogeny_class()
 

Elliptic curves in class 439569.ch

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
439569.ch1 439569ch2 \([1, -1, 0, -143968005, 222576734628]\) \(3885442650361/1996623837\) \(169581089889669638251123533\) \([2]\) \(222953472\) \(3.7251\)  
439569.ch2 439569ch1 \([1, -1, 0, -115396020, 476724541203]\) \(2000852317801/2094417\) \(177887046604188275418753\) \([2]\) \(111476736\) \(3.3786\) \(\Gamma_0(N)\)-optimal*
*optimality has not been determined rigorously for conductors over 400000. In this case the optimal curve is certainly one of the 0 curves highlighted, and conditionally curve 439569.ch1.

Rank

sage: E.rank()
 

The elliptic curves in class 439569.ch have rank \(0\).

Complex multiplication

The elliptic curves in class 439569.ch do not have complex multiplication.

Modular form 439569.2.a.ch

sage: E.q_eigenform(10)
 
\(q + q^{2} - q^{4} + 4 q^{5} + 2 q^{7} - 3 q^{8} + 4 q^{10} - 6 q^{11} + 2 q^{14} - q^{16} - 4 q^{19} + O(q^{20})\) 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.