• 제목/요약/키워드: ${\gamma}{\mathcal{H}}$-compactness

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SUPER AND STRONG γ𝓗-COMPACTNESS IN HEREDITARY m-SPACES

  • Ahmad Al-Omari;Takashi Noiri
    • 대한수학회논문집
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    • 제39권3호
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    • pp.775-784
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    • 2024
  • Let (X, m, 𝓗) be a hereditary m-space and γ : m → P(X) be an operation on m. A subset A of X is said to be γ𝓗-compact relative to X [3] if for every cover {U𝛼 : 𝛼 ∈ 2206;} of A by m-open sets of X, there exists a finite subset ∆0 of ∆ such that A ⧵ ∪{γ(U𝛼) : 𝛼 ∈ ∆0} ∈ 𝓗. In this paper, we define and investigate two kinds of strong forms of γ𝓗-compact relative to X.