Extension of functions with small oscillation
نویسندگان
چکیده
منابع مشابه
Extension of Functions with Small Oscillation
A classical theorem of Kuratowski says that every Baire one function on a Gδ subspace of a Polish (= separable completely metrizable) space X can be extended to a Baire one function on X. Kechris and Louveau introduced a finer gradation of Baire one functions into small Baire classes. A Baire one function f is assigned into a class in this heirarchy depending on its oscillation index β(f). We p...
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ژورنال
عنوان ژورنال: Fundamenta Mathematicae
سال: 2006
ISSN: 0016-2736,1730-6329
DOI: 10.4064/fm192-2-6