Tests \`a la Hurewicz dans le plan
Logic
2007-10-02 v1 General Topology
Abstract
We give, for some Borel sets of a product of two Polish spaces, including the Borel sets with countable sections, a Hurewicz-like characterization of those which cannot become a transfinite difference of open sets by changing the two Polish topologies.
Cite
@article{arxiv.0710.0130,
title = {Tests \`a la Hurewicz dans le plan},
author = {Dominique Lecomte},
journal= {arXiv preprint arXiv:0710.0130},
year = {2007}
}