Properties

Label 630.i
Number of curves $4$
Conductor $630$
CM no
Rank $0$
Graph

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Show commands: SageMath
E = EllipticCurve("i1")
 
E.isogeny_class()
 

Elliptic curves in class 630.i

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
630.i1 630j3 \([1, -1, 1, -3362, -74181]\) \(5763259856089/5670\) \(4133430\) \([2]\) \(512\) \(0.56289\)  
630.i2 630j2 \([1, -1, 1, -212, -1101]\) \(1439069689/44100\) \(32148900\) \([2, 2]\) \(256\) \(0.21632\)  
630.i3 630j1 \([1, -1, 1, -32, 51]\) \(4826809/1680\) \(1224720\) \([4]\) \(128\) \(-0.13026\) \(\Gamma_0(N)\)-optimal
630.i4 630j4 \([1, -1, 1, 58, -3909]\) \(30080231/9003750\) \(-6563733750\) \([2]\) \(512\) \(0.56289\)  

Rank

sage: E.rank()
 

The elliptic curves in class 630.i have rank \(0\).

Complex multiplication

The elliptic curves in class 630.i do not have complex multiplication.

Modular form 630.2.a.i

sage: E.q_eigenform(10)
 
\(q + q^{2} + q^{4} + q^{5} - q^{7} + q^{8} + q^{10} + 4 q^{11} - 2 q^{13} - q^{14} + q^{16} + 6 q^{17} + O(q^{20})\) 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.