M. E. Abd El-Monsef,1A. M. Kozae,1and A. A. Abo Khadra1
Received02 Jun 1992
Revised14 Sept 1995
Abstract
The process of changing a topology by some types of
its local discrete expansion preserves
s-closeness, S-closeness, semi-compactness, semi-Ti, semi-Ri, i∈{0,1,2}, and extremely disconnectness.
Via some other forms of such above replacements one can have topologies which satisfy
separation axioms the original topology does not have.