Properties

Label 1785.n
Number of curves $4$
Conductor $1785$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("n1")
 
E.isogeny_class()
 

Elliptic curves in class 1785.n

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
1785.n1 1785j4 \([1, 0, 1, -13654, 611777]\) \(281486573281608409/610107421875\) \(610107421875\) \([2]\) \(3072\) \(1.1451\)  
1785.n2 1785j3 \([1, 0, 1, -11784, -490979]\) \(180945977944161529/992266372125\) \(992266372125\) \([2]\) \(3072\) \(1.1451\)  
1785.n3 1785j2 \([1, 0, 1, -1159, 2021]\) \(171963096231529/97578140625\) \(97578140625\) \([2, 2]\) \(1536\) \(0.79857\)  
1785.n4 1785j1 \([1, 0, 1, 286, 287]\) \(2600176603751/1534698375\) \(-1534698375\) \([2]\) \(768\) \(0.45200\) \(\Gamma_0(N)\)-optimal

Rank

sage: E.rank()
 

The elliptic curves in class 1785.n have rank \(1\).

Complex multiplication

The elliptic curves in class 1785.n do not have complex multiplication.

Modular form 1785.2.a.n

sage: E.q_eigenform(10)
 
\(q + q^{2} + q^{3} - q^{4} - q^{5} + q^{6} + q^{7} - 3 q^{8} + q^{9} - q^{10} - q^{12} - 2 q^{13} + q^{14} - q^{15} - q^{16} - q^{17} + q^{18} - 4 q^{19} + O(q^{20})\) 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.

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

Isogeny graph

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

The vertices are labelled with LMFDB labels.