Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
Almost compact fuzzy sets in fuzzy topological spaces - MaRDI portal

Almost compact fuzzy sets in fuzzy topological spaces (Q2639369)

From MaRDI portal
scientific article
Language Label Description Also known as
English
Almost compact fuzzy sets in fuzzy topological spaces
scientific article

    Statements

    Almost compact fuzzy sets in fuzzy topological spaces (English)
    0 references
    0 references
    1990
    0 references
    A fuzzy set A in a fuzzy topological space X is called fuzzy almost compact if and only if every fuzzy open cover \({\mathcal U}\) of A has a finite subcollection \({\mathcal B}\) of \({\mathcal U}\) such that \(\cup \{Cl B:\) \(B\in {\mathcal B}\}\geq A\), where Cl B is the closure of B. Using the q- coincidence [\textit{Pao-Ming Pu} and the reviewer, J. Math. Anal. Appl. 76, 571-599 (1980; Zbl 0447.54006)], the authors get some elementary properties of the almost compact fuzzy sets.
    0 references
    fuzzy open cover
    0 references
    q-coincidence
    0 references
    almost compact fuzzy sets
    0 references
    0 references

    Identifiers