On degree based topological indices of bridge graphs

AbstractIn 2009, T. Mansour, M. Schork, introduce the concept of bridge graphs. A bridge graph B(G1, G2, … , Gm) = B(G1, G2, … , Gm; v1, v2, … , vm) of with respect to the vertices is the graph obtained from the graphs G1; G2; … ; Gmby connecting the vertices viand vi+1by an edge for all I =1; 2; … ; m-1.In this paper, we determine hyper-Zagreb index, first multiple Zagreb index, second multiple Zagreb index, Zagreb polynomials and M-polynomial for nano structures of bridge graphs.