Chains of P-points

DOI10.4153/S0008439519000043zbMath1468.03065arXiv1801.02410OpenAlexW2963814963MaRDI QIDQ5242550

Dilip Raghavan, Jonathan L. Verner

Publication date: 12 November 2019

Published in: Canadian Mathematical Bulletin (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1801.02410

zbMATH Keywords

ultrafilterP-pointRudin-Keisler order

Mathematics Subject Classification ID

Consistency and independence results (03E35) Continuum hypothesis and Martin's axiom (03E50) Other combinatorial set theory (03E05) Special constructions of topological spaces (spaces of ultrafilters, etc.) (54D80)

Related Items (4)

A long chain of P-points ⋮ Lower bounds of sets of P-points ⋮ Rapid interval P-points ⋮ THE RUDIN–KEISLER ORDERING OF P-POINTS UNDER 𝔟 = 𝔠

Cites Work

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• Tukey types of ultrafilters
• Cofinal types of ultrafilters
• Homogeneity problems in the theory of Cech compactifications
• Forcing with filters and complete combinatorics
• The Shelah P-point independence theorem
• On embedding certain partial orders into the P-points under Rudin-Keisler and Tukey reducibility
• Tukey classes of ultrafilters on omega
• P Points With Countably Many Constellations
• The Rudin-Blass ordering of ultrafilters
• A long chain of P-points
• Sums of ultrafilters
• The Category of Cofinal Types. II
• Partial Orders on the Types in βN
• The Rudin-Keisler Ordering of P-Points

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