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co-open

Last-modified: 2010-05-16 (日) 12:50:53

定義 Edit

  • An open set A is co-open , if closure of A is open.

出典 Edit

  • Abd El-Monsef, M. E.(ET-TANT) and Kozae, A. M.(ET-TANT),Remarks on $s$-closed spaces (Arabic summary), Qatar Univ. Sci. Bull. 6 (1986), 11--21.