On the average lower bondage number of graphs under join and corona operations.

Networks describe a wide range of systems in nature and society including examples the Internet, metabolic networks, electric power grids, supply chains, and the world trade Web among many others. The stability and reliability of a network are of prime importance to network designers. The domination number and its various, for example, bondage number, reinforcement number, etc. have been used network vulnerability parameters. Very recently, the average lower bondage number has been defined by Turacı in Reference [27]. In this paper, the average lower bondage number of the corona graphs and join graphs of given any two graphs G1 and G2 have been investigated, also exact formulas have been obtained. [ABSTRACT FROM AUTHOR]