2019/08/14 by Pierre Matet, Matet, Pierre
Mathematics · #03E05 #Advanced Topology and Set Theory #FOS: Mathematics #Logic (math.LO) #Mathematical and Theoretical Analysis #Rings, Modules, and Algebras
paper · pdf · doi:10.48550/arxiv.1908.05336
openalex publication_date 2019/08/14 · openalex created_date 2022/10/04 · openalex updated_date 2026/07/28
We revisit several results concerning club principles and nonsaturation of the nonstationary ideal, attempting to improve them in various ways. So we typically deal with a (non necessarily normal) ideal J extending the nonstationary ideal on a regular uncountable (non necessarily successor) cardinal κ, our goal being to witness the nonsaturation of J by the existence of towers (of length possibly greater than κ+).