Properties

Label 31680cs
Number of curves $2$
Conductor $31680$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("cs1")
 
E.isogeny_class()
 

Elliptic curves in class 31680cs

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
31680.be1 31680cs1 \([0, 0, 0, -588, 14992]\) \(-117649/440\) \(-84085309440\) \([]\) \(23040\) \(0.78192\) \(\Gamma_0(N)\)-optimal
31680.be2 31680cs2 \([0, 0, 0, 5172, -355952]\) \(80062991/332750\) \(-63589515264000\) \([]\) \(69120\) \(1.3312\)  

Rank

sage: E.rank()
 

The elliptic curves in class 31680cs have rank \(0\).

Complex multiplication

The elliptic curves in class 31680cs do not have complex multiplication.

Modular form 31680.2.a.cs

sage: E.q_eigenform(10)
 
\(q - q^{5} + q^{7} + q^{11} - 2 q^{13} + 3 q^{17} - q^{19} + O(q^{20})\) 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 Cremona numbering.

\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with Cremona labels.