English

On minimal presentations of numerical monoids

Combinatorics 2025-05-14 v1 Commutative Algebra

Abstract

We consider the classical problem of determining the largest possible cardinality of a minimal presentation of a numerical monoid with given embedding dimension and multiplicity. Very few values of this cardinality are known. In addressing this problem, we apply tools from Hilbert functions and free resolutions of artinian standard graded algebras. This approach allows us to solve the problem in many cases and, at the same time, identify subtle difficulties in the remaining cases. As a by-product of our analysis, we deduce results for the corresponding problem for the type of a numerical monoid.

Keywords

Cite

@article{arxiv.2405.19810,
  title  = {On minimal presentations of numerical monoids},
  author = {Alessio Moscariello and Alessio Sammartano},
  journal= {arXiv preprint arXiv:2405.19810},
  year   = {2025}
}
R2 v1 2026-06-28T16:46:48.988Z