Properties

Label 896.a
Number of curves $2$
Conductor $896$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("a1")
 
E.isogeny_class()
 

Elliptic curves in class 896.a

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
896.a1 896b2 \([0, 0, 0, -40, -96]\) \(432000/7\) \(114688\) \([2]\) \(64\) \(-0.22967\)  
896.a2 896b1 \([0, 0, 0, -5, 2]\) \(108000/49\) \(6272\) \([2]\) \(32\) \(-0.57624\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 896.a have rank \(1\).

Complex multiplication

The elliptic curves in class 896.a do not have complex multiplication.

Modular form 896.2.a.a

sage: E.q_eigenform(10)
 
\(q - q^{7} - 3 q^{9} - 2 q^{11} + 4 q^{13} - 2 q^{17} - 4 q^{19} + O(q^{20})\) 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.