Properties

Label 12480.y
Number of curves $4$
Conductor $12480$
CM no
Rank $2$
Graph

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Show commands: SageMath
E = EllipticCurve("y1")
 
E.isogeny_class()
 

Elliptic curves in class 12480.y

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
12480.y1 12480m3 \([0, -1, 0, -6625, -204575]\) \(490757540836/2142075\) \(140383027200\) \([2]\) \(24576\) \(0.99189\)  
12480.y2 12480m2 \([0, -1, 0, -625, 625]\) \(1650587344/950625\) \(15575040000\) \([2, 2]\) \(12288\) \(0.64532\)  
12480.y3 12480m1 \([0, -1, 0, -445, 3757]\) \(9538484224/26325\) \(26956800\) \([2]\) \(6144\) \(0.29875\) \(\Gamma_0(N)\)-optimal
12480.y4 12480m4 \([0, -1, 0, 2495, 2497]\) \(26198797244/15234375\) \(-998400000000\) \([2]\) \(24576\) \(0.99189\)  

Rank

sage: E.rank()
 

The elliptic curves in class 12480.y have rank \(2\).

Complex multiplication

The elliptic curves in class 12480.y do not have complex multiplication.

Modular form 12480.2.a.y

sage: E.q_eigenform(10)
 
\(q - q^{3} + q^{5} - 4 q^{7} + q^{9} - 4 q^{11} - q^{13} - q^{15} - 6 q^{17} + O(q^{20})\) 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.