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SageMath
E = EllipticCurve("bj1")
E.isogeny_class()
Elliptic curves in class 101430bj
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
101430.p3 | 101430bj1 | \([1, -1, 0, -66600, 6439936]\) | \(380920459249/12622400\) | \(1082574285710400\) | \([2]\) | \(663552\) | \(1.6579\) | \(\Gamma_0(N)\)-optimal |
101430.p4 | 101430bj2 | \([1, -1, 0, 21600, 22192456]\) | \(12994449551/2489452840\) | \(-213510713499233640\) | \([2]\) | \(1327104\) | \(2.0044\) | |
101430.p1 | 101430bj3 | \([1, -1, 0, -745740, -245545700]\) | \(534774372149809/5323062500\) | \(456538422465562500\) | \([2]\) | \(1990656\) | \(2.2072\) | |
101430.p2 | 101430bj4 | \([1, -1, 0, -194490, -600881450]\) | \(-9486391169809/1813439640250\) | \(-155531683611877970250\) | \([2]\) | \(3981312\) | \(2.5538\) |
Rank
sage: E.rank()
The elliptic curves in class 101430bj have rank \(2\).
Complex multiplication
The elliptic curves in class 101430bj do not have complex multiplication.Modular form 101430.2.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.
\(\left(\begin{array}{rrrr} 1 & 2 & 3 & 6 \\ 2 & 1 & 6 & 3 \\ 3 & 6 & 1 & 2 \\ 6 & 3 & 2 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with Cremona labels.