All Title Author
Keywords Abstract

Mathematics  2007 

Tests à la Hurewicz dans le plan

Full-Text   Cite this paper   Add to My Lib


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.


comments powered by Disqus