Abstract
We say that a space $X$ is {\it cofinally Polish} if for every continuous onto map $f:X\to M$ of $X$ onto a separable metrizable space $M$, there exists a Polish space $P$ and continuous onto maps $g:X\to P$ and $h:P\to M$ such that $f=h\circ g$. We study general properties of cofinally Polish spaces and compare the property of being cofinally Polish with subcompactness and domain representability. It is established, among other things, that a space with a countable network is cofinally Polish if and only if it is domain representable. We also show that any $G_\delta$-subset of an Eberlein compact space must be subcompact thus giving an answer to an open problem published in 2013.
Citation
Jila Niknejad. Vladimir V. Tkachuk. Lynne Yengulalp. "Polish factorizations, cosmic spaces and domain representability." Bull. Belg. Math. Soc. Simon Stevin 25 (3) 439 - 452, september 2018. https://doi.org/10.36045/bbms/1536631237
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