Lang's conjecture and sharp height estimates for the elliptic curves y2=x3+by^{2}=x^{3}+b

preprint2016arXivOpen access

Abstract

For Eb:y2=x3+bE_{b}: y^{2}=x^{3}+b, we establish Lang's conjecture on a lower bound for the canonical height of non-torsion points along with upper and lower bounds for the difference between the canonical and logarithmic height. In many cases, our results are actually best-possible.

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