2 papers
math.LO2007
Complexité des boréliens à coupes dénombrables
Dominique Lecomte
We give, for each level of complexity L, a Hurewicz-like characterization of the Borel subsets with countable sections of a product of two Polish spaces that cannot become in L by…
math.LO2007
Tests à la Hurewicz dans le plan
Dominique Lecomte
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 tr…