The shape of a random numerical semigroup
Combinatorics
2026-04-30 v1
Abstract
We study statistical properties of random numerical semigroups of a given genus. We analyze the graph of a typical numerical semigroup, understood as a function from to . If is a numerical semigroup of genus , this leads us to consider the collection of points where and denotes the th smallest nonzero element of . We show that as , this set of points typically becomes closer to a union of two line segments. We prove analogous results for numerical semigroups ordered by Frobenius number.
Cite
@article{arxiv.2604.26127,
title = {The shape of a random numerical semigroup},
author = {Maria Bras-Amorós and Nathan Kaplan and Deepesh Singhal},
journal= {arXiv preprint arXiv:2604.26127},
year = {2026}
}
Comments
39 pages