Properties

Label 78400.cn
Number of curves $2$
Conductor $78400$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("cn1")
 
E.isogeny_class()
 

Elliptic curves in class 78400.cn

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
78400.cn1 78400cv2 \([0, 1, 0, -1905633, 1011860863]\) \(544737993463/20000\) \(28098560000000000\) \([2]\) \(1474560\) \(2.2438\)  
78400.cn2 78400cv1 \([0, 1, 0, -113633, 17300863]\) \(-115501303/25600\) \(-35966156800000000\) \([2]\) \(737280\) \(1.8972\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 78400.cn have rank \(0\).

Complex multiplication

The elliptic curves in class 78400.cn do not have complex multiplication.

Modular form 78400.2.a.cn

sage: E.q_eigenform(10)
 
\(q - 2 q^{3} + q^{9} + 4 q^{11} - 2 q^{13} + 8 q^{17} - 6 q^{19} + O(q^{20})\) 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.