Volume 17 , Issue 1 , January 2015 , Pages 131-138
H M. Darwesh 1 ; N O. Hessea 2
1 College of Commerce, University of Sulaimani
2 Kurdistan Institution for Strategic students and scientific Research, Sulaimani
In this paper, we introduce a new type of semi-open sets which we call Sg - open sets, and then we study some its basic properties and characterizations, further, we investigate some relationships with some other types of sets.