On spaces with star kernel Menger
نویسندگان
چکیده
Given a topological property $$\mathcal{P}$$ , space $$X$$ is called star- if for any open cover $$\mathcal{U}$$ of the there exists set $$Y\subseteq X$$ with such that $$St(Y,\mathcal{U})=X$$ ; $$Y$$ star kernel . In this paper, we introduce and study spaces Menger, is, determined by Menger spaces, denoted $$S_{\rm fin}(\mathcal{O},\mathcal{O})$$ Some examples are given to show relationship some other related properties studied previously, behaviour respect subspaces, products, continuous images preimages investigated. Additionally, comments on selection principles theory given. Particularly, questions posed Song within addressed. Finally, several new introduced as well general them posed.
منابع مشابه
Some Remarks on Almost Menger Spaces and Weakly Menger Spaces
{V : V ∈ Vn} = X . Clearly, every Menger space is almost Menger and every almost Menger space is weakly Menger, but the converses do not hold (see Examples 2.1 and 2.2). On the study of weakly Menger spaces, almost Menger spaces and Menger spaces, the readers can see the references [2, 3, 4, 5, 6]. Here we investigate the relationships among almost Menger spaces, weakly Menger spaces and Menger...
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ژورنال
عنوان ژورنال: Acta Mathematica Hungarica
سال: 2023
ISSN: ['0001-5954', '0236-5294', '1588-2632']
DOI: https://doi.org/10.1007/s10474-023-01342-6