{ "id": "1901.00562", "version": "v1", "published": "2019-01-03T00:30:11.000Z", "updated": "2019-01-03T00:30:11.000Z", "title": "Ill-distributed sets over global fields and exceptional sets in Diophantine Geometry", "authors": [ "Marcelo Paredes" ], "categories": [ "math.NT", "math.CO" ], "abstract": "Let $K\\subseteq \\mathbb{R}$ be a number field. Using techniques of discrete analysis, we prove that for definable sets $X$ in $\\mathbb{R}_{\\exp}$ of dimension at most $2$ a conjecture of Wilkie about the density of rational points is equivalent to the fact that $X$ is badly distributed at the level of residue classes for many primes of $K$. This provides a new strategy to prove this conjecture of Wilkie. In order to prove this result, we are lead to study an inverse problem as in the works \\cite{Walsh2, Walsh}, but in the context of number fields, or more generally global fields. Specifically, we prove that if $K$ is a global field, then every subset $S\\subseteq \\mathbb{P}^{n}(K)$ consisting of rational points of projective height bounded by $N$, occupying few residue classes modulo $\\mathfrak{p}$ for many primes $\\mathfrak{p}$ of $K$, must essentially lie in the solution set of a polynomial equation of degree $\\ll (\\log(N))^{C}$, for some constant $C$.", "revisions": [ { "version": "v1", "updated": "2019-01-03T00:30:11.000Z" } ], "analyses": { "subjects": [ "11G50", "11G99", "11P70", "11U09" ], "keywords": [ "global field", "exceptional sets", "diophantine geometry", "ill-distributed sets", "number field" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }