Displaying similar documents to “Equivalence of compositional expressions and independence relations in compositional models”

Graphical major indices. II.

Foata, Dominique, Krattenthaler, Christian (1995)

Séminaire Lotharingien de Combinatoire [electronic only]

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Some debts I owe.

Andrews, George E. (1999)

Séminaire Lotharingien de Combinatoire [electronic only]

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If it looks and smells like the reals...

Franklin Tall (2000)

Fundamenta Mathematicae

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Given a topological space ⟨X,T⟩ ∈ M, an elementary submodel of set theory, we define X M to be X ∩ M with topology generated by U ∩ M:U ∈ T ∩ M. We prove that if X M is homeomorphic to ℝ, then X = X M . The same holds for arbitrary locally compact uncountable separable metric spaces, but is independent of ZFC if “local compactness” is omitted.

The Dugundji extension property can fail in ωµ -metrizable spaces

Ian Stares, Jerry Vaughan (1996)

Fundamenta Mathematicae

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We show that there exist ω μ -metrizable spaces which do not have the Dugundji extension property ( 2 ω 1 with the countable box topology is such a space). This answers a question posed by the second author in 1972, and shows that certain results of van Douwen and Borges are false.