Properties

Label 1170.b
Number of curves $4$
Conductor $1170$
CM no
Rank $1$
Graph

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

Elliptic curves in class 1170.b

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
1170.b1 1170c3 \([1, -1, 0, -12480, 539756]\) \(294889639316481/260\) \(189540\) \([2]\) \(1024\) \(0.74509\)  
1170.b2 1170c2 \([1, -1, 0, -780, 8576]\) \(72043225281/67600\) \(49280400\) \([2, 2]\) \(512\) \(0.39852\)  
1170.b3 1170c4 \([1, -1, 0, -600, 12500]\) \(-32798729601/71402500\) \(-52052422500\) \([2]\) \(1024\) \(0.74509\)  
1170.b4 1170c1 \([1, -1, 0, -60, 80]\) \(33076161/16640\) \(12130560\) \([2]\) \(256\) \(0.051946\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 1170.b have rank \(1\).

Complex multiplication

The elliptic curves in class 1170.b do not have complex multiplication.

Modular form 1170.2.a.b

sage: E.q_eigenform(10)
 
\(q - q^{2} + q^{4} - q^{5} - q^{8} + q^{10} + q^{13} + q^{16} - 2 q^{17} - 8 q^{19} + O(q^{20})\) 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 LMFDB numbering.

\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with LMFDB labels.