Further properties of an extremal set of uniqueness
David Grow, Matt Insall (1998)
Colloquium Mathematicae
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David Grow, Matt Insall (1998)
Colloquium Mathematicae
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David Grow, Matt Insall (1993)
Colloquium Mathematicae
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Paul Szeptycki (1993)
Fundamenta Mathematicae
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We present a construction from ♢* of a first countable, regular, countably metacompact space with a closed discrete subspace that is not a . In addition some nonperfect spaces with σ-disjoint bases are constructed.
J. Nikiel, L. Treybig (1996)
Colloquium Mathematicae
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Barr, Michael, Kennison, John F., Raphael, R. (2009)
Theory and Applications of Categories [electronic only]
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G. Sokolov (1993)
Fundamenta Mathematicae
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We give an example of a compact space X whose iterated continuous function spaces , are Lindelöf, but X is not a Corson compactum. This solves a problem of Gul’ko (Problem 1052 in [11]). We also provide a theorem concerning the Lindelöf property in the function spaces on compact scattered spaces with the th derived set empty, improving some earlier results of Pol [12] in this direction.
Ge, Ying (2007)
Bulletin of TICMI
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Roland Coghetto (2014)
Formalized Mathematics
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This article proposes the formalization of some examples of semiring of sets proposed by Goguadze [8] and Schmets [13].
Kurilić, Miloš S., Pavlović, Aleksandar (2005)
Novi Sad Journal of Mathematics
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Wojciech Olszewski (1991)
Fundamenta Mathematicae
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For every cardinal τ and every ordinal α, we construct a metrizable space and a strongly countable-dimensional compact space of weight τ such that , and each metrizable space X of weight τ such that D(X) ≤ α is homeomorphic to a subspace of and to a subspace of .