Published November 6, 2025 | Version v1

Topological and Measure-Theoretic Properties of Partition-Dominating Sets (Preprint)

Authors/Creators

Description

This paper extends partition-dominating sets—subsets whose elements lie in maximum-cardinality parts across partition families—to topological and measure-theoretic contexts. For countable partition families on Polish spaces with nowhere-dense rigging, we construct comeager dominating sets; for probability measure spaces with null rigging, we obtain conull dominating sets. For uncountable products indexed by κ, we introduce λ-scaled rigging (λ ≤ κ) ensuring complements of size at least λ⁺. Under measurable cardinals, the generated filter embeds in a measurable ultrafilter, yielding homogeneity properties. The results unify Baire category, measure, and large-cardinal frameworks, and all proofs are formalized in ZFC unless stated otherwise.",

Notes

This paper builds on previous works by the author: 'Partition-Dominating Sets and Their Combinatorial Properties' (2025) and 'Bounded Rigging and λ-Half-Density in Indexed Partitions of Sets' (2025).",

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Half_Dense_Paper_2r__TOPOLOGICAL_AND_MEASURE_THEORETIC_PROPERTIES_OF_PARTITION_DOMINATING_SETS (1).pdf

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Related works

Is part of
Preprint: 10.5281/zenodo.17509560 (DOI)
Preprint: 10.5281/zenodo.17509711 (DOI)

References

  • Betzer, D. (2025). (Expanded) Partition-Dominating Sets: Rigged Partitions, Filters, Forcing, and Sphere Paradoxes (Preprint). Zenodo. https://doi.org/10.5281/zenodo.17509451
  • Betzer, D. (2025). Bounded Rigging and λ-Half-Density in Indexed Partitions of Sets (Preprint). Zenodo. https://doi.org/10.5281/zenodo.17509239
  • J. C. Oxtoby, Measure and Category, Springer, 1980, doi:10.1007/978-1-4684-9339-9.",
  • A. Kanamori, The Higher Infinite: Large Cardinals in Set Theory from Their Beginnings, 2nd ed., Springer, 2003."