AbstractA space X is said to be an (a)-space provided that for every open cover U of X and every dense subspace D of X there exists a closed in X and discrete subspace F ⊂ D such that St(F, U) = X. We show that every Tychonoff space can be represented as a closed subspace of a Tychonoff (a)-space. Also we consider closed Gδ-subspaces
Let Y be a metrizable space containing at least two points, and let X be a YI-Tychonoff space for so...
AbstractExamples of a pseudocompact (even countably compact) G-space which is not G-Tychonoff and of...
Dedicated to Professor W. Wistar Comfort on the occasion of his seventieth birthday Abstract. Every ...
AbstractA space X is said to be an (a)-space provided that for every open cover U of X and every den...
AbstractIt is well known that some classes of spaces such as absolutely countably compact (abbreviat...
A space X has the property (wa) (or is a space with the property (wa)) if for every open cover U of ...
AbstractIt is well known that some classes of spaces such as absolutely countably compact (abbreviat...
Abstract. A space X has the property (wa) (or is a space with the property (wa)) if for every open c...
summary:In this paper, we prove the following statements: (1) There exists a Tychonoff star countabl...
summary:In this paper, we prove the following statements: (1) There exists a Tychonoff star countabl...
summary:In this paper, we prove the following two statements: (1) There exists a discretely absolute...
AbstractA Tychonoff space X has to be finite if Cp(X) is σ-countably compact [23]. However, this is ...
summary:In this paper, we prove the following two statements: (1) There exists a discretely absolute...
AbstractWe define a new property acc which is stronger than countable compactness: X is acc if for e...
Every first countable pseudocompact Tychonoff space X has the property that every pseudocompact subs...
Let Y be a metrizable space containing at least two points, and let X be a YI-Tychonoff space for so...
AbstractExamples of a pseudocompact (even countably compact) G-space which is not G-Tychonoff and of...
Dedicated to Professor W. Wistar Comfort on the occasion of his seventieth birthday Abstract. Every ...
AbstractA space X is said to be an (a)-space provided that for every open cover U of X and every den...
AbstractIt is well known that some classes of spaces such as absolutely countably compact (abbreviat...
A space X has the property (wa) (or is a space with the property (wa)) if for every open cover U of ...
AbstractIt is well known that some classes of spaces such as absolutely countably compact (abbreviat...
Abstract. A space X has the property (wa) (or is a space with the property (wa)) if for every open c...
summary:In this paper, we prove the following statements: (1) There exists a Tychonoff star countabl...
summary:In this paper, we prove the following statements: (1) There exists a Tychonoff star countabl...
summary:In this paper, we prove the following two statements: (1) There exists a discretely absolute...
AbstractA Tychonoff space X has to be finite if Cp(X) is σ-countably compact [23]. However, this is ...
summary:In this paper, we prove the following two statements: (1) There exists a discretely absolute...
AbstractWe define a new property acc which is stronger than countable compactness: X is acc if for e...
Every first countable pseudocompact Tychonoff space X has the property that every pseudocompact subs...
Let Y be a metrizable space containing at least two points, and let X be a YI-Tychonoff space for so...
AbstractExamples of a pseudocompact (even countably compact) G-space which is not G-Tychonoff and of...
Dedicated to Professor W. Wistar Comfort on the occasion of his seventieth birthday Abstract. Every ...
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