Properties

Label 880b
Number of curves $2$
Conductor $880$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("b1")
 
E.isogeny_class()
 

Elliptic curves in class 880b

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
880.f1 880b1 \([0, 0, 0, -38, 87]\) \(379275264/15125\) \(242000\) \([2]\) \(96\) \(-0.20043\) \(\Gamma_0(N)\)-optimal
880.f2 880b2 \([0, 0, 0, 17, 318]\) \(2122416/171875\) \(-44000000\) \([2]\) \(192\) \(0.14615\)  

Rank

sage: E.rank()
 

The elliptic curves in class 880b have rank \(0\).

Complex multiplication

The elliptic curves in class 880b do not have complex multiplication.

Modular form 880.2.a.b

sage: E.q_eigenform(10)
 
\(q - q^{5} + 2 q^{7} - 3 q^{9} + q^{11} + 8 q^{19} + O(q^{20})\) 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.

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

Isogeny graph

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

The vertices are labelled with Cremona labels.