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SageMath
E = EllipticCurve("bj1")
E.isogeny_class()
Elliptic curves in class 38850bj
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
38850.bn4 | 38850bj1 | \([1, 0, 1, 1999, 28148]\) | \(56578878719/54390000\) | \(-849843750000\) | \([2]\) | \(61440\) | \(0.97612\) | \(\Gamma_0(N)\)-optimal |
38850.bn3 | 38850bj2 | \([1, 0, 1, -10501, 253148]\) | \(8194759433281/2958272100\) | \(46223001562500\) | \([2, 2]\) | \(122880\) | \(1.3227\) | |
38850.bn2 | 38850bj3 | \([1, 0, 1, -71751, -7219352]\) | \(2614441086442081/74385450090\) | \(1162272657656250\) | \([2]\) | \(245760\) | \(1.6693\) | |
38850.bn1 | 38850bj4 | \([1, 0, 1, -149251, 22175648]\) | \(23531588875176481/6398929110\) | \(99983267343750\) | \([2]\) | \(245760\) | \(1.6693\) |
Rank
sage: E.rank()
The elliptic curves in class 38850bj have rank \(1\).
Complex multiplication
The elliptic curves in class 38850bj do not have complex multiplication.Modular form 38850.2.a.bj
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.