Baire property of spaces of $[0,1]$-valued continuous functions
Alexander V. Osipov, Е. Г. Пыткеев
Abstract
Open-access reader
Alexander V. Osipov, Е. Г. Пыткеев
Abstract
Open-access reader
A topological space $X$ is Baire if the intersection of any sequence of open dense subsets of $X$ is dense in $X$. Let $C_p(X,[0,1])$ denote the space of all continuous $[0,1]$-valued functions on a Tychonoff space $X$ with the topology of pointwise convergence. In this paper, we have obtained a characterization when the function space $C_p(X,[0,1])$ is Baire for a Tychonoff space $X$ all separable closed subsets of which are $C$-embedded. In particular, this characterization is true for normal spaces and, hence, for metrizable spaces. Moreover, we obtained that the space $C_p(X,[0,1])$ is Baire, if and only if, the space $Cp(X,K)$ is Baire for a Peano continuum $K$.
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A topological space $X$ is Baire if the intersection of any sequence of open dense subsets of $X$ is dense in $X$. Let $C_p(X,[0,1])$ denote the space of all continuous $[0,1]$-valued functions on a Tychonoff space $X$ with the topology of pointwise convergence. In this paper, we have obtained a characterization when the function space $C_p(X,[0,1])$ is Baire for a Tychonoff space $X$ all separable closed subsets of which are $C$-embedded. In particular, this characterization is true for normal spaces and, hence, for metrizable spaces. Moreover, we obtained that the space $C_p(X,[0,1])$ is Baire, if and only if, the space $Cp(X,K)$ is Baire for a Peano continuum $K$.
Key concepts: Baire category theorem, Baire space, Tychonoff space, Mathematics, Baire measure, Separable space, Metrization theorem, Pointwise