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arXiv · 1607.03826

Absolute $\mathcal F$-Borel classes

Vojtěch Kovařík
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Abstract

We investigate and compare $\mathcal F$-Borel classes and absolute $\mathcal F$-Borel classes. We provide precise examples distinguishing these two hierarchies. We also show that for separable metrizable spaces, $\mathcal F$-Borel classes are automatically absolute.

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Vojtěch Kovařík. 2018-04-23. Absolute $\mathcal F$-Borel classes. https://doi.org/10.4064/fm412-10-2017

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