Properties

Label 7488bu
Number of curves $4$
Conductor $7488$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("bu1")
 
E.isogeny_class()
 

Elliptic curves in class 7488bu

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
7488.i3 7488bu1 \([0, 0, 0, -1416, 20504]\) \(420616192/117\) \(87340032\) \([2]\) \(4096\) \(0.50557\) \(\Gamma_0(N)\)-optimal
7488.i2 7488bu2 \([0, 0, 0, -1596, 14960]\) \(37642192/13689\) \(163500539904\) \([2, 2]\) \(8192\) \(0.85214\)  
7488.i1 7488bu3 \([0, 0, 0, -10956, -430576]\) \(3044193988/85293\) \(4074936532992\) \([2]\) \(16384\) \(1.1987\)  
7488.i4 7488bu4 \([0, 0, 0, 4884, 105680]\) \(269676572/257049\) \(-12280707219456\) \([2]\) \(16384\) \(1.1987\)  

Rank

sage: E.rank()
 

The elliptic curves in class 7488bu have rank \(1\).

Complex multiplication

The elliptic curves in class 7488bu do not have complex multiplication.

Modular form 7488.2.a.bu

sage: E.q_eigenform(10)
 
\(q - 2 q^{5} - 4 q^{7} - q^{13} - 2 q^{17} + 8 q^{19} + O(q^{20})\) 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 Cremona 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 Cremona labels.