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SageMath
E = EllipticCurve("k1")
E.isogeny_class()
Elliptic curves in class 21294.k
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
21294.k1 | 21294bi4 | \([1, -1, 0, -2975868, -1974774060]\) | \(828279937799497/193444524\) | \(680681711924614764\) | \([2]\) | \(516096\) | \(2.4124\) | |
21294.k2 | 21294bi2 | \([1, -1, 0, -207648, -23178960]\) | \(281397674377/96589584\) | \(339873996077585424\) | \([2, 2]\) | \(258048\) | \(2.0658\) | |
21294.k3 | 21294bi1 | \([1, -1, 0, -85968, 9455616]\) | \(19968681097/628992\) | \(2213261675718912\) | \([2]\) | \(129024\) | \(1.7193\) | \(\Gamma_0(N)\)-optimal |
21294.k4 | 21294bi3 | \([1, -1, 0, 613692, -161656884]\) | \(7264187703863/7406095788\) | \(-26060153347393378668\) | \([2]\) | \(516096\) | \(2.4124\) |
Rank
sage: E.rank()
The elliptic curves in class 21294.k have rank \(1\).
Complex multiplication
The elliptic curves in class 21294.k do not have complex multiplication.Modular form 21294.2.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 LMFDB 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 LMFDB labels.