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Computing ABC4 index of nanostar dendrimers
, Article Optoelectronics and Advanced Materials, Rapid Communications ; Volume 4, Issue 9 , 2010 , Pages 1419-1422 ; 18426573 (ISSN) ; Hosseinzadeh, M. A ; Sharif University of Technology
2010
Abstract
The ABC index is a topological index was defined as where dG(u) denotes degree of vertex u. Now we define a new version of ABC index as where The goal of this paper is further the study of the ABC4 index
On the Zagreb indices of nanostar dendrimers
, Article Optoelectronics and Advanced Materials, Rapid Communications ; Volume 4, Issue 3 , 2010 , Pages 378-380 ; 18426573 (ISSN) ; Ghorbani, M ; Sharif University of Technology
2010
Abstract
Let G be a graph. The first and second Zagreb index of G is defined as M1(G)= Σ degG(V)2 and M2(G)= Σ degG(u)degG(V) respectively. In this paper we compute Zagreb indices of chain graphs