Mashhour, A. S.; Abd El-Monsef, M. E.; El-Deep, S. N. On precontinuous and weak precontinuous mappings. (English) Zbl 0571.54011 Proc. Math. Phys. Soc. Egypt 53, 47-53 (1982). The notions of precontinuous, weak precontinuous, preopen and weak preopen mappings in topological spaces are introduced. Their connections with other existing concepts such as almost continuous in the sense of Hussain, almost continuous in the sense of Singal and almost open in the sense of Wilansky are investigated. Cited in 18 ReviewsCited in 227 Documents MSC: 54C08 Weak and generalized continuity 54C10 Special maps on topological spaces (open, closed, perfect, etc.) Keywords:(weak) precontinuous map; (weak) preopen map; almost continuity PDFBibTeX XMLCite \textit{A. S. Mashhour} et al., Proc. Math. Phys. Soc. Egypt 53, 47--53 (1982; Zbl 0571.54011)