On Generalized Contra and Strongly Contra Closed Graphs via δ-β-Open and Closed Sets

Abstract

New classes of generalized closed and strongly closed graphs, namely, δ – β – closed, contra–δ – β – closed and strongly contra–δ – β – closed graphs in topological spaces are introduced and investigated by utilizing the notions of δ – β – open and closed sets. Several interesting characterizations and fundamental properties concerning of such these forms of generalized graphs are discussed.