Universal Bounds and Monotonicity of Ordinal Invariants

DOI10.2307/2044138zbMath0472.54003OpenAlexW4238137164MaRDI QIDQ3925520

James R. Boone

Publication date: 1981

Full work available at URL: https://doi.org/10.2307/2044138

zbMATH Keywords

tightnessordinal invariantspseudo-open mappingsnatural cover

Mathematics Subject Classification ID

Special maps on topological spaces (open, closed, perfect, etc.) (54C10) Cardinality properties (cardinal functions and inequalities, discrete subsets) (54A25)

Cites Work

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• A note on linearly ordered net spaces
• Ordinal invariants for topological spaces
• Pseudo-open functions are monotonic decreasing for ordinal and cardinal invariants
• Cardinal Functions for k-Spaces
• On open mappings, closed mappings, and ordinal invariants
• Convergence, Closed Projections and Compactness

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