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SageMath
E = EllipticCurve("bg1")
E.isogeny_class()
Elliptic curves in class 29120bg
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
29120.o1 | 29120bg1 | \([0, 1, 0, -1905, 28975]\) | \(46689225424/3901625\) | \(63924224000\) | \([2]\) | \(36864\) | \(0.81536\) | \(\Gamma_0(N)\)-optimal |
29120.o2 | 29120bg2 | \([0, 1, 0, 2015, 136383]\) | \(13799183324/129390625\) | \(-8479744000000\) | \([2]\) | \(73728\) | \(1.1619\) |
Rank
sage: E.rank()
The elliptic curves in class 29120bg have rank \(2\).
Complex multiplication
The elliptic curves in class 29120bg do not have complex multiplication.Modular form 29120.2.a.bg
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.