Results 71 to 80 of about 114 (106)
Totally paracompact spaces and the Menger covering property
Topology and its Applications16 ...
Bonanzinga, Maddalena +2 more
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Ternary Menger hyperalgebras: some algebraic properties
Bulletin of the Karaganda University-MathematicsIn this article, we first establish an algebraic hyperstructure called a ternary Menger hyperalgebra of rank n, where n is a natural number. The algebraic hyperstructure can be regarded as a novel generalization of ternary semihypergroups. In particular, by setting the natural number n equal to 1, the algebraic hyperstructures of ternary Menger ...
A. Nongmanee, S. Leeratanavalee
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Nearly Menger covering property via bitopological spaces
AIMS Mathematics<p>This paper is a continuation and complement for previous works on selective covering properties. We introduce the novel concept of the nearly Menger property in a bitopological context. We demonstrate its interrelations with existing covering properties and construct certain equivalences between those. We also investigate various properties of
Necati Can Açıkgöz +1 more
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A characterization of the Menger and Hurewicz properties of subspaces of the real line
Matematychni Studii, 2005 openaire +1 more source
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Weaker forms of the Menger property in bitopological spaces
Quaestiones Mathematicae, 2018In this paper we continue previous investigations on the weaker forms of the Menger property in bitopological spaces. We introduce weakly Menger property and study some topological properties of almost and weakly Menger bitopological spaces. We also consider the almost Hurewicz spaces in a bitopological context.Mathematics Subject Classication (2010 ...
Selma Ozcag
exaly +4 more sources
Relative versions of star-Menger property
Mathematica SlovacaAbstract Motivated by Bonanzinga and Maesano (2022), we introduce and study the new relative versions of star-Menger property related to some properties studied lately by Kočinac et al. (2022) and Bonanzinga et al. (2023). In this paper, we provide some examples to understand their relationships with other relativizations of star ...
Mittal, Sumit +2 more
exaly +3 more sources
Menger Fractal Acoustic Metamaterials with Double-Negative Property
2019 Thirteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), 2019We construct new three-dimensional fractal acoustic metamaterials by adopting Menger structure, which have the double-negative property with a single structure. By adopting the finite element method and S-parameter retrieval method, the effective parameters of the acoustic metamaterials with different fractal orders are researched separately.
Yu Liu +4 more
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Set-Menger and related properties
Topology and its Applications, 2020Let \(\mathcal P\) be a collection of subsets of a space \(X\) and say that \(X\) is \(\mathcal P\)-Menger (resp. weakly \(\mathcal P\)-Menger, almost \(\mathcal P\)-Menger) if for each \(A\in\mathcal P\) and each sequence \(\langle\mathcal U_n\rangle\) of families of open subsets such that \(\overline{A}\subset\cup\mathcal U_n\) for each \(n\) there ...
Kočinac, Ljubiša D. R. +1 more
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The Menger property and l-equivalence
Topology and its Applications, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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