Closures and Interiors Redefined, and Some Types of Compactness in Ordinary Smooth Topological Spaces

Jeong Gon Lee, Pyung Ki Lim, Kul Hur
2013 Journal of Korean institute of intelligent systems  
We give a new definition of ordinary smooth closure and ordinary smooth interior of an ordinary subset in an ordinary smooth topological space which have almost all the properties of the corresponding operators in a classical topological space. As a consequence of these definitions we reduce the additional hypotheses in the results of [1] and also generalize several properties of the types of compactness in [1] .
doi:10.5391/jkiis.2013.23.1.80 fatcat:t6febitanba6hpnho77f52jhme