AbstractThe problem to embed a space into a first countable H-closed like space is considered. As a consequence, it is shown that no upper bound exists either for the cardinality of a first countable almost Lindelöf space or for the cardinality of an H-set contained in a first countable Hausdorff space
Lindelof spaces are studied in any basic Topology course. However, there are other interesting cov...
summary:A subset $Y$ of a space $X$ is almost countably compact in $X$ if for every countable cover ...
Inspired by work of Scheepers and Tall, we use properties defined by topological games to provide bo...
AbstractThe problem to embed a space into a first countable H-closed like space is considered. As a ...
AbstractWe show that every first-countable countably paracompact Lindelöf T1-space has cardinality a...
It was P. Alexandroff and P. Urysohn who first introduced the class of H-closed spaces. Since then, ...
We use topological consequences of PFA, MA$_{\omega_1}$(S)[S] and PFA(S)[S] proved by other authors ...
It was P. Alexandroff and P. Urysohn who first introduced the class of H-closed spaces. Since then, ...
1. Bella and Carlson give several classes of spaces X for which |X| ≤ 2wL(X)χ(X). This includes loca...
A Hausdorff space X is H-cZosed if X is closed in every Hausdorff space containing X as a subspace. ...
A space is said to be "almost discretely Lindelöf" if every discrete subset can be covered by a Lind...
AbstractWe prove (in ZFC) the following theorem. Assume κ is an infinite cardinal, X is a Hausdorff ...
AbstractWe show that every first-countable countably paracompact Lindelöf T1-space has cardinality a...
AbstractA connectification of a topological space X is a connected Hausdorff space that contains X a...
ii In this work we obtain results related to H-sets, Katětov spaces, and H-closed exten-sions with ...
Lindelof spaces are studied in any basic Topology course. However, there are other interesting cov...
summary:A subset $Y$ of a space $X$ is almost countably compact in $X$ if for every countable cover ...
Inspired by work of Scheepers and Tall, we use properties defined by topological games to provide bo...
AbstractThe problem to embed a space into a first countable H-closed like space is considered. As a ...
AbstractWe show that every first-countable countably paracompact Lindelöf T1-space has cardinality a...
It was P. Alexandroff and P. Urysohn who first introduced the class of H-closed spaces. Since then, ...
We use topological consequences of PFA, MA$_{\omega_1}$(S)[S] and PFA(S)[S] proved by other authors ...
It was P. Alexandroff and P. Urysohn who first introduced the class of H-closed spaces. Since then, ...
1. Bella and Carlson give several classes of spaces X for which |X| ≤ 2wL(X)χ(X). This includes loca...
A Hausdorff space X is H-cZosed if X is closed in every Hausdorff space containing X as a subspace. ...
A space is said to be "almost discretely Lindelöf" if every discrete subset can be covered by a Lind...
AbstractWe prove (in ZFC) the following theorem. Assume κ is an infinite cardinal, X is a Hausdorff ...
AbstractWe show that every first-countable countably paracompact Lindelöf T1-space has cardinality a...
AbstractA connectification of a topological space X is a connected Hausdorff space that contains X a...
ii In this work we obtain results related to H-sets, Katětov spaces, and H-closed exten-sions with ...
Lindelof spaces are studied in any basic Topology course. However, there are other interesting cov...
summary:A subset $Y$ of a space $X$ is almost countably compact in $X$ if for every countable cover ...
Inspired by work of Scheepers and Tall, we use properties defined by topological games to provide bo...
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