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SageMath
E = EllipticCurve("k1")
E.isogeny_class()
Elliptic curves in class 9108k
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
9108.i2 | 9108k1 | \([0, 0, 0, -840, 9101]\) | \(5619712000/184437\) | \(2151273168\) | \([2]\) | \(4608\) | \(0.56415\) | \(\Gamma_0(N)\)-optimal |
9108.i1 | 9108k2 | \([0, 0, 0, -2055, -23218]\) | \(5142706000/1728243\) | \(322531621632\) | \([2]\) | \(9216\) | \(0.91072\) |
Rank
sage: E.rank()
The elliptic curves in class 9108k have rank \(0\).
Complex multiplication
The elliptic curves in class 9108k do not have complex multiplication.Modular form 9108.2.a.k
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.
\(\left(\begin{array}{rr} 1 & 2 \\ 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.