Results 1 to 10 of about 151 (135)
On Star Selection Principles Theory
Axioms, 2023 The aim of this paper is to review up-to-date recent results in the field of star selection principles, a rapidly growing area of topology, and to present a few new results.
Ljubiša D. R. Kočinac
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Relationships between some selection principles and star selection principles
Topology and Its Applications, 2022 Motivated by the definition of classical star selection principles, Cruz-Castillo, Ramírez-Páramo and Tenorio defined some selection principles and posed several questions about relationships between these notions and some of the classical star selection principles. The main goal of this paper is to answer the questions posed by these authors.
Javier Casas De La Rosa
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Absolutely strongly star-Hurewicz spaces
Open Mathematics, 2015 A space X is absolutely strongly star-Hurewicz if for each sequence (Un :n ∈ℕ/ of open covers of X and each dense subset D of X, there exists a sequence (Fn :n ∈ℕ/ of finite subsets of D such that for each x ∈X, x ∈St(Fn; Un) for all but finitely many n.
Song Yan-Kui
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Some star and strongly star selection principles
Topology and Its Applications, 2019 Connections between star-Menger and strongly star-Menger are explored. For example with a specified topology, $2^{\omega_1}$ is a metacompact regular space that is not strongly star-Menger but, with $\mathfrak d>\omega_1$, is star-Menger. Rudin's $\clubsuit$ example of a hereditarily separable, first countable de Caux-type space is Dowker and strongly ...
Casas-de la Rosa, Javier +2 more
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Further investigations on certain star selection principles
Topology and Its Applications, 2023 We consider certain star versions of the Menger, Hurewicz and Rothberger properties. Few important observations concerning these properties are presented, which have not been investigated in earlier works. A variety of investigations is performed using Alster covers and critical cardinalities $\mathfrak{d}$, $\mathfrak{b}$ and ${\sf cov}(\mathcal{M})$.
Debraj Chandra
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Some new star-selection principles in topology
Filomat, 2017 Summary: Motivated by the recent works of Kočinac who initiated investigation of star selection principles, we introduce and study some new types of star-selection principles. Also some open problems are posed.
Bal, Prasenjit, Bhowmik, Subrata
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Variations of star selection principles on hyperspaces
Mathematica SlovacaAbstract In this paper, we define some combinatorial principles to characterize spaces X whose hyperspace satisfies some variation of some classical star selection principle. Specifically, the variations characterized are the selective and absolute versions of the star selection principles for the Menger and Rothberger cases; also, the ...
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Attraction and Repulsion Factors of Tourism Destinations with Emphasis on Inbound French Cultural Tourists’ Experiences in Iran [PDF]
برنامه ریزی فضایی, 2022 Choosing a tourist destination is a complex process and could be affected by various factors. Some of these factors depend on the destination and its characteristics.
AhmadReza Sheikhi, Morteza Kowsari
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Frontiers in Nutrition, 2022 Background:Nutrient criteria underlying front-of-pack food labeling programs can play an important role in improving dietary intakes. Currently, no methodology for the development or update of nutrient criteria has been published, nor the methods used by
Carlene Starck +8 more
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Selection principles and covering properties in bitopological spaces
Applied General Topology, 2020 Our main focus in this paper is to introduce and study various selection principles in bitopological spaces. In particular, Menger type, and Hurewicz type covering properties like: Almost p-Menger, star p-Menger, strongly star p-Menger, weakly p-Hurewicz,
Moiz ud Din Khan, Amani Sabah
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