Add to ORKGSong Abstract. A space X is discretely absolutely star-Lindelöf if for every open cover U of X and every dense subset D of X, there exists a countable subset F of D such that F is discrete closed in X and St(F,U) = X, where St(F,U) = {U ∈ U: U∩F 6 = ∅}. We show that every Hausdorff star-Lindelöf space can be represented in a Hausdorff discretely absolutely star-Lindelöf space as a closed Gδ-subspace
summary:In this paper, we prove the following statements: (1) There exists a Tychonoff star countabl...
We show that a Tychonoff discretely star-Lindelof space can have arbitrarily big extent and...
Abstract. A space X is cs-starcompact if for every open cover U of X, there exists a convergent sequ...
summary:A space $X$ is {\it discretely absolutely star-Lindelöf\/} if for every open cover $\Cal U$ ...
Abstract. In this paper, we consider two questions on absolute star-Lindelöf-ness and star-Lindelö...
summary:In this paper, we prove the following two statements: (1) There exists a discretely absolute...
[EN] A space X is discretely absolutely star-Lindelöf if for every open cover U of X and every dense...
summary:In this paper, we prove the following statements: \item {(1)} There exists a Hausdorff Linde...
Abstract. If B is a compact space and B \ {pt} is Lindelöf then Bκ \ {−→pt} is star-Linedlöf for e...
summary:A topological space $X$ is said to be star Lindelöf if for any open cover $\mathcal U$ of $X...
A space X is monotonically star Lindelöf if one assign to for each open cover U a subspace s(U) ⊆ X,...
summary:For a topological property $P$, we say that a space $X$ is star $P$ if for every open cover ...
For a topological property P, we say that a space X is star P if for every open cover U of the space...
A space is said to be "almost discretely Lindelöf" if every discrete subset can be covered by a Lind...
AbstractWhenever P is a topological property, we say that a topological space is star P if whenever ...
summary:In this paper, we prove the following statements: (1) There exists a Tychonoff star countabl...
We show that a Tychonoff discretely star-Lindelof space can have arbitrarily big extent and...
Abstract. A space X is cs-starcompact if for every open cover U of X, there exists a convergent sequ...
summary:A space $X$ is {\it discretely absolutely star-Lindelöf\/} if for every open cover $\Cal U$ ...
Abstract. In this paper, we consider two questions on absolute star-Lindelöf-ness and star-Lindelö...
summary:In this paper, we prove the following two statements: (1) There exists a discretely absolute...
[EN] A space X is discretely absolutely star-Lindelöf if for every open cover U of X and every dense...
summary:In this paper, we prove the following statements: \item {(1)} There exists a Hausdorff Linde...
Abstract. If B is a compact space and B \ {pt} is Lindelöf then Bκ \ {−→pt} is star-Linedlöf for e...
summary:A topological space $X$ is said to be star Lindelöf if for any open cover $\mathcal U$ of $X...
A space X is monotonically star Lindelöf if one assign to for each open cover U a subspace s(U) ⊆ X,...
summary:For a topological property $P$, we say that a space $X$ is star $P$ if for every open cover ...
For a topological property P, we say that a space X is star P if for every open cover U of the space...
A space is said to be "almost discretely Lindelöf" if every discrete subset can be covered by a Lind...
AbstractWhenever P is a topological property, we say that a topological space is star P if whenever ...
summary:In this paper, we prove the following statements: (1) There exists a Tychonoff star countabl...
We show that a Tychonoff discretely star-Lindelof space can have arbitrarily big extent and...
Abstract. A space X is cs-starcompact if for every open cover U of X, there exists a convergent sequ...