Properties

Label 400554.ch
Number of curves $4$
Conductor $400554$
CM no
Rank $0$
Graph

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

Elliptic curves in class 400554.ch

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
400554.ch1 400554ch4 \([1, -1, 0, -104682501, -412222484093]\) \(7209828390823479793/49509306\) \(871179997203776106\) \([2]\) \(31457280\) \(3.0421\)  
400554.ch2 400554ch3 \([1, -1, 0, -9121761, -899647025]\) \(4770223741048753/2740574865798\) \(48223944078768559530198\) \([2]\) \(31457280\) \(3.0421\) \(\Gamma_0(N)\)-optimal*
400554.ch3 400554ch2 \([1, -1, 0, -6546771, -6431240543]\) \(1763535241378513/4612311396\) \(81159558751848080196\) \([2, 2]\) \(15728640\) \(2.6956\) \(\Gamma_0(N)\)-optimal*
400554.ch4 400554ch1 \([1, -1, 0, -252351, -178363715]\) \(-100999381393/723148272\) \(-12724725116907829872\) \([2]\) \(7864320\) \(2.3490\) \(\Gamma_0(N)\)-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 400554.ch1.

Rank

sage: E.rank()
 

The elliptic curves in class 400554.ch have rank \(0\).

Complex multiplication

The elliptic curves in class 400554.ch do not have complex multiplication.

Modular form 400554.2.a.ch

sage: E.q_eigenform(10)
 
\(q - q^{2} + q^{4} + 2 q^{5} + q^{7} - q^{8} - 2 q^{10} + q^{11} - 2 q^{13} - q^{14} + q^{16} + O(q^{20})\) 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.