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Connections Between Kuratowski Partitions of Baire Spaces, Measurable Cardinals, and Precipitous Ideals

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Abstract

In this paper, we investigate the existence and properties of Kuratowski partitions (K-partitions), i.e., partitions of Baire spaces such that all subfamilies of such partition sum to a set with the Baire property. We focus on the inherent symmetries in their structure and prove their connections to existence of measurable cardinals and precipitous ideals. Our results reveal that the existence of a K-partition in any Baire or compact space is symmetrically reflected in metrizable and completely metrizable spaces, respectively, and we explore how these symmetries extend to the realm of set-theoretic ideals and large cardinals. We also outline possible connections with real-measurable cardinals, extensions of Lebesgue measure on the closed interval, and density topologies.

Original languageEnglish
Article number1426
JournalSymmetry
Volume17
Issue number9
DOIs
Publication statusPublished - Sept 2025

Keywords

  • Kuratowski partitions
  • measurable cardinals
  • precipitous ideals

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Chemistry (miscellaneous)
  • General Mathematics
  • Physics and Astronomy (miscellaneous)

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