English

Elasticity in Apery sets

Commutative Algebra 2019-08-20 v1

Abstract

A numerical semigroup SS is an additive subsemigroup of the non-negative integers, containing zero, with finite complement. Its multiplicity mm is its smallest nonzero element. The Apery set of SS is the set Ap(S)={nS:nmS}\text{Ap}(S) = \{n \in S : n-m \notin S\}. Fixing a numerical semigroup, we ask how many elements of its Apery set have nonunique factorization, and define several new invariants.

Keywords

Cite

@article{arxiv.1908.06448,
  title  = {Elasticity in Apery sets},
  author = {Jackson Autry and Tara Gomes and Christopher O'Neill and Vadim Ponomarenko},
  journal= {arXiv preprint arXiv:1908.06448},
  year   = {2019}
}
R2 v1 2026-06-23T10:50:09.955Z