Abstract
Let A be an elliptic curve defined over the rational numbers Q. Mordell’s theorem asserts that the group of points A(Q) is finitely generated. Say {P 1,..., P r } is a basis of A(Q) modulo torsion. Explicit upper bounds for the heights of elements in such a basis are not known. The purpose of this note is to conjecture such bounds for a suitable basis. Indeed, R⊗A(Q) is a vector space over R with a positive definite quadratic form given by the Néron-Tate height: if A is defined by the equation
, and P = (x, y) is a rational point with x = c/d written as a fraction in lowest form, then one defines the x-height
.
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Lang, S. (1983). Conjectured Diophantine Estimates on Elliptic Curves. In: Artin, M., Tate, J. (eds) Arithmetic and Geometry. Progress in Mathematics, vol 35. Birkhäuser, Boston, MA. https://doi.org/10.1007/978-1-4757-9284-3_7
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