Properties

Label 308550fk
Number of curves $4$
Conductor $308550$
CM no
Rank $1$
Graph

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Show commands: SageMath
E = EllipticCurve("fk1")
 
E.isogeny_class()
 

Elliptic curves in class 308550fk

sage: E.isogeny_class().curves
 
LMFDB label Cremona label Weierstrass coefficients j-invariant Discriminant Torsion structure Modular degree Faltings height Optimality
308550.fk3 308550fk1 \([1, 1, 1, -6249713, -15194665969]\) \(-975276594443809/3037581803520\) \(-84082210272276480000000\) \([2]\) \(39813120\) \(3.0854\) \(\Gamma_0(N)\)-optimal
308550.fk2 308550fk2 \([1, 1, 1, -137897713, -622618537969]\) \(10476561483361670689/13992628953600\) \(387324933463571400000000\) \([2]\) \(79626240\) \(3.4320\)  
308550.fk4 308550fk3 \([1, 1, 1, 54734287, 352050982031]\) \(655127711084516831/2313151512408000\) \(-64029515726141076375000000\) \([2]\) \(119439360\) \(3.6347\)  
308550.fk1 308550fk4 \([1, 1, 1, -539738713, 4200669184031]\) \(628200507126935410849/88124751829125000\) \(2439349585549320533203125000\) \([2]\) \(238878720\) \(3.9813\)  

Rank

sage: E.rank()
 

The elliptic curves in class 308550fk have rank \(1\).

Complex multiplication

The elliptic curves in class 308550fk do not have complex multiplication.

Modular form 308550.2.a.fk

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

\(\left(\begin{array}{rrrr} 1 & 2 & 3 & 6 \\ 2 & 1 & 6 & 3 \\ 3 & 6 & 1 & 2 \\ 6 & 3 & 2 & 1 \end{array}\right)\)

Isogeny graph

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

The vertices are labelled with Cremona labels.