Results 1 to 10 of about 114 (106)

Weaker forms of the Menger property

open access: yesQuaestiones Mathematicae, 2012
In this paper we study a weaker form of the classical concept of Menger property.  This property, called weakly Menger, is independent from the Menger property and the almost Menger property. In particular, for Tychonoff spaces weaker  Menger spaces are not equivalent to almost Menger spaces. We give some characterizations in terms of regular
Bruno Antonio Pansera
exaly   +5 more sources

Almost strongly star-Menger and related properties

open access: yesApplied General Topology
In this paper we introduce the almost strongly star-Menger property and we provide some results and relationships with another known properties in literature.
Ricardo Cruz-Castillo   +2 more
doaj   +3 more sources

Weak infinite-dimensionality in Cartesian products with the Menger Property

open access: yesTopology and Its Applications, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
exaly   +3 more sources

Some remarks on the projective properties of Menger and Hurewicz

open access: yesQuaestiones Mathematicae
It is known that both the Menger and Hurewicz property of a Tychonoff space $X$ can be described by the way $X$ is placed in its Čech-Stone compactification $βX$. We provide analogous characterizations for the projective versions of the properties of Menger and Hurewicz.
Mikołaj Krupski
exaly   +4 more sources

Some properties defined by relative versions of star-covering properties II

open access: yesApplied General Topology, 2023
In this paper we consider some recent relative versions of Menger property called set strongly star Menger and set star Menger properties and the corresponding Hurewicz-type properties. In particular, using [2], we "easily" prove that the set strong star
Maddalena Bonanzinga   +2 more
doaj   +1 more source

On the Menger and almost Menger properties in locales

open access: yesApplied General Topology, 2021
<p>The Menger and the almost Menger properties are extended to locales. Regarding the former, the extension is conservative (meaning that a space is Menger if and only if it is Menger as a locale), and the latter is conservative for sober T<sub>D</sub>-spaces.
Tilahun Bayih   +2 more
openaire   +5 more sources

On localization of the Menger property

open access: yesQuaestiones Mathematicae, 2022
In this paper we introduce and study the local version of the Menger property, namely locally Menger property (or, locally Menger space). We explore some preservation like properties in this space. We also discuss certain situations where this local property behaves somewhat differently from the classical Menger property.
Nur Alam, Debraj Chandra
openaire   +3 more sources

On a probabilistic version of Meir-Keeler type fixed point theorem for a family of discontinuous operators

open access: yesApplied General Topology, 2021
A Meir-Keeler type fixed point theorem for a family of mappings is proved in Menger probabilistic metric space (Menger PM-space). We establish that completeness of the space is equivalent to fixed point property for a larger class of mappings that ...
Ravindra K. Bisht, Vladimir Rakocević
doaj   +1 more source

Menger's covering property and groupwise density [PDF]

open access: yesJournal of Symbolic Logic, 2006
AbstractWe establish a surprising connection between Menger's classical covering property and Blass-Laflamme's modern combinatorial notion of groupwise density. This connection implies a short proof of the groupwise density bound on the additivity number for Menger's property.
Boaz Tsaban, Lyubomyr Zdomskyy
openaire   +4 more sources

On the Menger covering property and $D$-spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 2012
7 pages, to appear in Proc. Amer.
Repovs, Dusan, Zdomskyy, Lyubomyr
openaire   +3 more sources

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