Show commands:
SageMath
E = EllipticCurve("kd1")
E.isogeny_class()
Elliptic curves in class 308550kd
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
308550.kd3 | 308550kd1 | \([1, 0, 0, -1170738, -487648908]\) | \(6411014266033/296208\) | \(8199227198250000\) | \([2]\) | \(5898240\) | \(2.1288\) | \(\Gamma_0(N)\)-optimal |
308550.kd2 | 308550kd2 | \([1, 0, 0, -1231238, -434469408]\) | \(7457162887153/1370924676\) | \(37948073280300562500\) | \([2, 2]\) | \(11796480\) | \(2.4754\) | |
308550.kd1 | 308550kd3 | \([1, 0, 0, -5859488, 5059263342]\) | \(803760366578833/65593817586\) | \(1815678891819871031250\) | \([2]\) | \(23592960\) | \(2.8219\) | |
308550.kd4 | 308550kd4 | \([1, 0, 0, 2429012, -2524472158]\) | \(57258048889007/132611470002\) | \(-3670770443878330031250\) | \([2]\) | \(23592960\) | \(2.8219\) |
Rank
sage: E.rank()
The elliptic curves in class 308550kd have rank \(1\).
Complex multiplication
The elliptic curves in class 308550kd do not have complex multiplication.Modular form 308550.2.a.kd
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.
\(\left(\begin{array}{rrrr} 1 & 2 & 4 & 4 \\ 2 & 1 & 2 & 2 \\ 4 & 2 & 1 & 4 \\ 4 & 2 & 4 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.