Separable variables algebras
Siemion Fajtlowicz, Kazimierz Głazek, Kazimierz Urbanik (1966)
Colloquium Mathematicum
Similarity:
Siemion Fajtlowicz, Kazimierz Głazek, Kazimierz Urbanik (1966)
Colloquium Mathematicum
Similarity:
L.J. Bunce, J.D. Maitland Wright (1991)
Mathematische Zeitschrift
Similarity:
H. Sarbadhikari (1977)
Fundamenta Mathematicae
Similarity:
B. Rao (1970)
Fundamenta Mathematicae
Similarity:
S. Fajtlowicz, K. Głazek (1967)
Colloquium Mathematicae
Similarity:
B. V. Rao (1970)
Colloquium Mathematicae
Similarity:
B. V. Rao (1971)
Colloquium Mathematicae
Similarity:
B. Rao (1970)
Fundamenta Mathematicae
Similarity:
Greg Hjorth, Alexander S. Kechris (2001)
Fundamenta Mathematicae
Similarity:
Let E₀ be the Vitali equivalence relation and E₃ the product of countably many copies of E₀. Two new dichotomy theorems for Borel equivalence relations are proved. First, for any Borel equivalence relation E that is (Borel) reducible to E₃, either E is reducible to E₀ or else E₃ is reducible to E. Second, if E is a Borel equivalence relation induced by a Borel action of a closed subgroup of the infinite symmetric group that admits an invariant metric, then either E is reducible...
Ashok Maitra (1970)
Fundamenta Mathematicae
Similarity:
Michael Rice, George Reynolds (1980)
Fundamenta Mathematicae
Similarity:
Alexey Ostrovsky (2011)
Fundamenta Mathematicae
Similarity:
Let X be a Borel subset of the Cantor set C of additive or multiplicative class α, and f: X → Y be a continuous function onto Y ⊂ C with compact preimages of points. If the image f(U) of every clopen set U is the intersection of an open and a closed set, then Y is a Borel set of the same class α. This result generalizes similar results for open and closed functions.
D. H. Fremlin, J. Jasiński (1988)
Colloquium Mathematicae
Similarity:
Alessandro Andretta, Donald A. Martin (2003)
Fundamenta Mathematicae
Similarity:
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.
K. Musiał (1973)
Colloquium Mathematicae
Similarity:
Anthony Hager, George Reynolds, M. Rice (1972)
Fundamenta Mathematicae
Similarity: