Weakly Borel-complete topological spaces
Michael Rice, George Reynolds (1980)
Fundamenta Mathematicae
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Displaying similar documents to “Sesquiregular Measures in Product Spaces and Convolution of Such Measures”
Weakly Borel-complete topological spaces
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Nonmultiplicative measures in locally compact products
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Spaces with a Borel-complete Stone-Čech compactification
Hermann Render (1995)
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Miloslav Duchoň (1986)
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Existence of Borel lifting
K. Musiał (1973)
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Normal numbers and the Borel hierarchy
Verónica Becher, Pablo Ariel Heiber, Theodore A. Slaman (2014)
Fundamenta Mathematicae
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We show that the set of absolutely normal numbers is Π⁰₃-complete in the Borel hierarchy of subsets of real numbers. Similarly, the set of absolutely normal numbers is Π⁰₃-complete in the effective Borel hierarchy.
Borel-Wadge degrees
Alessandro Andretta, Donald A. Martin (2003)
Fundamenta Mathematicae
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Two sets of reals are Borel equivalent if one is the Borel pre-image of the other, and a Borel-Wadge degree is a collection of pairwise Borel equivalent subsets of ℝ. In this note we investigate the structure of Borel-Wadge degrees under the assumption of the Axiom of Determinacy.