International Journal of Mathematics and Mathematical Sciences
Volume 2007 (2007), Article ID 40469, 13 pages
doi:10.1155/2007/40469
Contra-ω-Continuous and Almost Contra-ω-Continuous
Ahmad Al-Omari
and Mohd Salmi Md Noorani
School of Mathematical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia
Abstract
The notion of contra continuous functions was introduced and investigated by Dontchev. In this paper, we apply the notion of ω-open sets in topological space to present and study a new class of called almost contra ω-continuous functions as a new generalization of contra continuity.