Change of universe functors in equivariant stable homotopy theory
L. Lewis Jr. (1995)
Fundamenta Mathematicae
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L. Lewis Jr. (1995)
Fundamenta Mathematicae
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Ken Ono, Lawrence Sze (1997)
Acta Arithmetica
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Rüdiger Göbel, R. Shortt (1994)
Fundamenta Mathematicae
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Let G be an Abelian group and let μ: A → G and ν: B → G be finitely additive measures (charges) defined on fields A and B of subsets of a set X. It is assumed that μ and ν agree on A ∩ B, i.e. they are consistent. The existence of common extensions of μ and ν is investigated, and conditions on A and B facilitating such extensions are given.
N. Brunner, Paul Howard, Jean Rubin (1997)
Fundamenta Mathematicae
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Węglorz' models are models for set theory without the axiom of choice. Each one is determined by an atomic Boolean algebra. Here the algebraic properties of the Boolean algebra are compared to the set theoretic properties of the model.
E. Bombieri, S. Sperber (1995)
Acta Arithmetica
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Yoshiharu Kohayakawa, Tomasz Łuczak, Vojtěch Rödl (1996)
Acta Arithmetica
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Jörg Brendle (1995)
Fundamenta Mathematicae
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Lothar Redlin, Saleem Watson (1997)
Fundamenta Mathematicae
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Let X be a completely regular space and let A(X) be a ring of continuous real-valued functions on X which is closed under local bounded inversion. We show that the structure space of A(X) is homeomorphic to a quotient of the Stone-Čech compactification of X. We use this result to show that any realcompactification of X is homeomorphic to a subspace of the structure space of some ring of continuous functions A(X).