F σ -Set Covers of Analytic Spaces and First Class Selectors

DOI10.2307/2046182zbMath0584.54035OpenAlexW4251808485MaRDI QIDQ3706927

Roger W. Hansell

Publication date: 1986

Published in: Proceedings of the American Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2307/2046182

zbMATH Keywords

\(\sigma \) -discrete refinementfirst Baire class selectorspoint-countable \(F_{\sigma }\)-additive familyweakly \(F_{\sigma }\)-measurable multimap

Mathematics Subject Classification ID

Classes of sets (Borel fields, (sigma)-rings, etc.), measurable sets, Suslin sets, analytic sets (28A05) Selections in general topology (54C65) Descriptive set theory (topological aspects of Borel, analytic, projective, etc. sets) (54H05) Topology of special sets defined by functions (54C50)

Related Items (4)

Extended Bochner measurable selectors ⋮ \(G_{\delta}\)-additive families in absolute Souslin spaces and Borel measurable selectors ⋮ $F_\sigma $–additive families and the invariance of Borel classes ⋮ Descriptive classes of sets in nonseparable spaces

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