English

Integral points in rational polygons: a numerical semigroup approach

Combinatorics 2019-07-03 v1

Abstract

In this paper we use an elementary approach by using numerical semigroups (specifically, those with two generators) to give a formula for the number of integral points inside a right-angled triangle with rational vertices. This is the basic case for computing the number of integral points inside a rational (not necessarily convex) polygon.

Keywords

Cite

@article{arxiv.1907.01226,
  title  = {Integral points in rational polygons: a numerical semigroup approach},
  author = {Guadalupe Márquez-Campos and Jorge L. Ramírez-Alfonsín and José M. Tornero},
  journal= {arXiv preprint arXiv:1907.01226},
  year   = {2019}
}
R2 v1 2026-06-23T10:09:40.302Z