EUDML | On some ideals and related algebras of sets in the plane

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Displaying similar documents to “On some ideals and related algebras of sets in the plane”

Sets with no uncountable Blackwell subsets

Rae Michael Shortt (1987)

Czechoslovak Mathematical Journal

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Bimeasurable functions

R. Purves (1966)

Fundamenta Mathematicae

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Weakly Borel-complete topological spaces

Michael Rice, George Reynolds (1980)

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Some uniformization results

H. Sarbadhikari (1977)

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Borel-approachable functions

Steven Shreve (1981)

Fundamenta Mathematicae

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Invariant Borel sets

Dana Scott (1964)

Fundamenta Mathematicae

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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.