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Bibliographic Details
Main Authors: Klinga, Paweł, Nowik, Andrzej, Wąsik, Anna
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2512.07711
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Table of Contents:
  • We investigate the $σ$-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, $σ$-porosity is a strengthening of meagerness. In this paper, we verify which ideals are $σ$-porous.