Title of article :
Some Results on Semi-preopen Sets
Author/Authors :
Majeed, R. N. University of Baghdad - College of Education Ibn Al- Haitham - Department of Mathematics, Iraq , Nasir, A. I. University of Baghdad - Ibn Al-Haitham, College of Education - Department of Mathematics, Iraq
Abstract :
The definition of semi-preopen sets were first introduced by Andrijevic as were is defined by :Let (X , τ ) be a topological space, and let A ⊆ X , then A is called semi-preopen set if A ⊆A¯∘In this paper, we study the properties of semi-preopen sets but by another definition which is equivalent to the first definition and we also study the relationships among it and (open, α-open, preopen and semi-p-open )sets.
Journal title :
Ibn Alhaitham Journal For Pure and Applied Science
Journal title :
Ibn Alhaitham Journal For Pure and Applied Science
