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Nowhere constant families of maps and resolvability

Authors :
Juhász, István
van Mill, Jan
Publication Year :
2023

Abstract

If $X$ is a topological space and $Y$ is any set then we call a family $\mathcal{F}$ of maps from $X$ to $Y$ nowhere constant if for every non-empty open set $U$ in $X$ there is $f \in \mathcal{F}$ with $|f[U]| > 1$, i.e. $f$ is not constant on $U$. We prove the following result that improves several earlier results in the literature. If $X$ is a topological space for which $C(X)$, the family of all continuous maps of $X$ to $\mathbb{R}$, is nowhere constant and $X$ has a $\pi$-base consisting of connected sets then $X$ is $\mathfrak{c}$-resolvable.<br />Comment: 6 pages

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2312.12257
Document Type :
Working Paper