Levine, Norman Semi-open sets and semi-continuity in topological spaces. (English) Zbl 0113.16304 Am. Math. Mon. 70, 36-41 (1963). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 35 ReviewsCited in 360 Documents Keywords:topology PDF BibTeX XML Cite \textit{N. Levine}, Am. Math. Mon. 70, 36--41 (1963; Zbl 0113.16304) Full Text: DOI OpenURL