$F_{σ}$-additive covers of Čech complete and scattered-K-analytic spaces

• Autorzy: Jiří Spurný
• Języki publikacji: EN

Abstrakty

EN

We prove that an $F_{σ}$-additive cover of a Čech complete, or more generally scattered-K-analytic space, has a σ-scattered refinement. This generalizes results of G. Koumoullis and R. W. Hansell.

Kategorie tematyczne

• 54H05: Descriptive set theory (topological aspects of Borel, analytic, projective, etc. sets)
• 28A05: Classes of sets (Borel fields, σ -rings, etc.), measurable sets, Suslin sets, analytic sets

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Fundamenta Mathematicae
• Rocznik: 2008
• Tom: 199
• Numer: 2
• Strony: 131-138

Daty

wydano

2008

Twórcy

autor

Jiří Spurný

• Faculty of Mathematics and Physics, Charles University, Sokolovská 83, 186 75 Praha 8, Czech Republic

Identyfikatory

DOI

10.4064/fm199-2-3