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)
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.