Properties

Label 463680.db
Number of curves $4$
Conductor $463680$
CM no
Rank $2$
Graph

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Show commands: SageMath
E = EllipticCurve("db1")
 
E.isogeny_class()
 

Elliptic curves in class 463680.db

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
463680.db1 463680db3 \([0, 0, 0, -2473068, 1496932432]\) \(8753151307882969/65205\) \(12460869550080\) \([2]\) \(5767168\) \(2.1074\) \(\Gamma_0(N)\)-optimal*
463680.db2 463680db2 \([0, 0, 0, -154668, 23357392]\) \(2141202151369/5832225\) \(1114555554201600\) \([2, 2]\) \(2883584\) \(1.7608\) \(\Gamma_0(N)\)-optimal*
463680.db3 463680db4 \([0, 0, 0, -94188, 41815888]\) \(-483551781049/3672913125\) \(-701904628776960000\) \([2]\) \(5767168\) \(2.1074\)  
463680.db4 463680db1 \([0, 0, 0, -13548, 44368]\) \(1439069689/828345\) \(158299194654720\) \([2]\) \(1441792\) \(1.4142\) \(\Gamma_0(N)\)-optimal*
*optimality has not been determined rigorously for conductors over 400000. In this case the optimal curve is certainly one of the 3 curves highlighted, and conditionally curve 463680.db1.

Rank

sage: E.rank()
 

The elliptic curves in class 463680.db have rank \(2\).

Complex multiplication

The elliptic curves in class 463680.db do not have complex multiplication.

Modular form 463680.2.a.db

sage: E.q_eigenform(10)
 
\(q - q^{5} - q^{7} + 4 q^{11} - 2 q^{13} - 6 q^{17} - 4 q^{19} + O(q^{20})\) 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.

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

Isogeny graph

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

The vertices are labelled with LMFDB labels.