Small points on subvarieties of a torus
Date Issued
2009-01-01
Author(s)
Amoroso, Francesco
DOI
10.1215/00127094-2009-056
Abstract
Let V be a subvariety of a torus defined over the algebraic numbers. We give a qualitative and quantitative description of the set of points of V of height bounded by invariants associated to any variety containing V . Especially, we determine whether such a set is or is not dense in V . We then prove that these sets can always be written as the intersection of V with a finite union of translates of tori of which we control the sum of the degrees. As a consequence, we prove a conjecture by the first author and David up to a logarithmic factor.
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