On G-transitive version of perfectly meager sets
نویسندگان
چکیده
منابع مشابه
On Perfectly Meager Sets
We show that it is consistent that the product of perfectly meager sets is perfectly meager.
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We study category counterparts of the notion of a universal measure zero set of reals. We say that a set A ⊆ R is universally meager if every Borel isomorphic image of A is meager in R. We give various equivalent definitions emphasizing analogies with the universally null sets of reals. In particular, two problems emerging from an earlier work of Grzegorek are
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ژورنال
عنوان ژورنال: Mathematica Moravica
سال: 2020
ISSN: 1450-5932,2560-5542
DOI: 10.5937/matmor2001063n