$\sigma$-Porosity of Certain Ideals
Logic
2025-12-09 v1
Abstract
We investigate the -porosity of certain known ideals of subsets of natural numbers. Porosity is a notion of smallness in metric spaces that is stronger than nowhere density. Analogously, -porosity is a strengthening of meagerness. In this paper, we verify which ideals are -porous.
Cite
@article{arxiv.2512.07711,
title = {$\sigma$-Porosity of Certain Ideals},
author = {Paweł Klinga and Andrzej Nowik and Anna Wąsik},
journal= {arXiv preprint arXiv:2512.07711},
year = {2025}
}