Cardinal characteristics on κ modulo non-stationary

2021/05/17 by Johannes Philipp Schürz, Schürz, Johannes Philipp
Decision Sciences · Mathematics · #Advanced Topology and Set Theory #FOS: Mathematics #Fuzzy and Soft Set Theory #Logic (math.LO) #Mathematical and Theoretical Analysis #Rings, Modules, and Algebras

paper · pdf · doi:10.48550/arxiv.2105.07746

openalex publication_date 2021/05/17 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28

Abstract

For κ regular and uncountable we define variants of the classical cardinal characteristics modulo the non-stationary ideal.

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• The complexity of non-stationary ideals
• The nonstationary ideal on P_κ(lambda) for lambda singular
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