| The reformulated Zagreb indices are defined as:EM1(G) where d{e)= d(u)+d(v) - 2,fore= uv. The definition of hyper Zagreb indices as follow:HM1(G) d(e)d(f), where d(e)= d(u)+d(v).In this paper, some exact expressions for the reformulated Zagreb indices and the hy-per Zagreb indices of some graph operations.The operations mainly contain the Cartesian productjoin and composition.We also discuss the upper and lower bounds of EM2(G)and HM2(G)... |