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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| Online-Zugang: | https://arxiv.org/abs/2512.07711 |
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| _version_ | 1866915661449527296 |
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| author | Klinga, Paweł Nowik, Andrzej Wąsik, Anna |
| author_facet | Klinga, Paweł Nowik, Andrzej Wąsik, Anna |
| 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_07711 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | $σ$-Porosity of Certain Ideals Klinga, Paweł Nowik, Andrzej Wąsik, Anna Logic 03E15, 40A05 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. |
| title | $σ$-Porosity of Certain Ideals |
| topic | Logic 03E15, 40A05 |
| url | https://arxiv.org/abs/2512.07711 |