English

Sharp o-minimality and lattice point counting

Logic 2025-05-21 v2 Number Theory

Abstract

Let ΛRn\Lambda\subseteq\mathbb{R}^n be a lattice and let ZRm+nZ\subseteq\mathbb{R}^{m+n} be a definable family in an o-minimal expansion of the real field, R\overline{\mathbb{R}}. A result of Barroero and Widmer gives sharp estimates for the number of lattice points in the fibers ZT={xRn:(T,x)Z}Z_T=\{x\in\mathbb{R}^n:(T,x)\in Z\}. Here we give an effective version of this result for a family definable in a sharply o-minimal structure expanding R\overline{\mathbb{R}}. We also give an effective version of the Barroero and Widmer statement for certain sets definable in Rexp\mathbb{R}_{\exp}.

Keywords

Cite

@article{arxiv.2503.01731,
  title  = {Sharp o-minimality and lattice point counting},
  author = {Andrew Harrison-Migochi and Raymond McCulloch},
  journal= {arXiv preprint arXiv:2503.01731},
  year   = {2025}
}

Comments

15 pages, small changes to presentation of the introduction. Comments welcome

R2 v1 2026-06-28T22:04:56.095Z