Refining families for ultrafilters

DOI10.1007/BF01301576zbMath0314.54039OpenAlexW1997049989MaRDI QIDQ1220730

Neil Hindman, W. Wistar Comfort

Publication date: 1976

Published in: Mathematische Zeitschrift (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/172391

Mathematics Subject Classification ID

Cardinality properties (cardinal functions and inequalities, discrete subsets) (54A25) Peculiar topological spaces (54G99) Generalities in topology (54A99)

Related Items (5)

Research of Wis Comfort on ultrafilters and the Stone-Čech compactification ⋮ Ultrafilters and almost disjoint sets. II ⋮ In memoriam: Petr Simon (1944--2018) ⋮ Refinement Properties and Extensions of Filters in Boolean Algebras ⋮ Refining families for ultrafilters

Cites Work

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• Martin's axiom and pathological points in \(\beta\) X\(\backslash X\)
• Refining families for ultrafilters
• Ultrafilters and almost disjoint sets
• Ultrafilters and almost disjoint sets. II
• Almost-disjoint sets the dense set problem and the partition calculus
• Generalizations of almost disjointness, c-sets, and the baire number of βN-N
• Modules over commutative regular rings
• On the Existence of c-Points in βN\N
• Short complete nested sequences in βN⧹N and small maximal almost-disjoint families
• Ultrafilters and Independent Sets

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