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arxiv: 0710.0131 · v1 · submitted 2007-09-30 · 🧮 math.LO · math.GN

Uniformisations partielles et crit\`eres \`a la Hurewicz dans le plan

classification 🧮 math.LO math.GN
keywords borelsetssomecharacterizationsclasscountablecritdans
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We give characterizations of the Borel sets potentially in some Wadge class, among the Borel sets with countable vertical sections of a product of two Polish spaces. To do this, we use some partial uniformization results.

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