Implications of Some Types of Pairwise Closed Graphs
The main goal of this paper is to introduce and look into some of the fundamental properties of pairwise strongly closed, pairwise strongly -closed and pairwise quasi -closed graphs. Some characterizations and several properties concerning these graphs are obtained. We also investigate relationships between (i,j)-strongly alpha -closed graph G(f) and (i,j)-weakly alpha -continuous. We study relationships between (i,j) strongly alpha -closed (i,j)-quasi alpha-closed graphs with covering properties. The concepts of pairwise -closed and pairwise quasi H-closed relatively are stated.