Remarks on star weakly Lindelöf spaces
| Autor: | Yan-Kui Song, Wei-Feng Xuan |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Quaestiones Mathematicae; Vol. 46 No. 1 (2023); 73-83 |
| ISSN: | 1607-3606 1727-933X |
| Popis: | Let P be a topological property. A space X is said to be star P if whenever U is an open cover of X, there exists a subspace A ⊆ X with property P such that X = St(A,𝒰), where St(A,𝒰) = ⋃ {U ∈ 𝒰 : U ∩ A ≠ ∅}. In this paper, we investigate the relationships among star Lindelöf spaces, star almost Lindelöf spaces and star weakly Lindelöf spaces, and also study topological properties of star weakly Lindelöf spaces. |
| Databáze: | OpenAIRE |
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