On Disjoint Borel Uniformizations
نویسندگان
چکیده
منابع مشابه
2 5 O ct 1 99 6 ON DISJOINT BOREL UNIFORMIZATIONS Howard
Larman showed that any closed subset of the plane with uncountable vertical cross-sections has א1 disjoint Borel uniformizing sets. Here we show that Larman’s result is best possible: there exist closed sets with uncountable cross-sections which do not have more than א1 disjoint Borel uniformizations, even if the continuum is much larger than א1. This negatively answers some questions of Mauldi...
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ژورنال
عنوان ژورنال: Advances in Mathematics
سال: 1999
ISSN: 0001-8708
DOI: 10.1006/aima.1999.1829