JOURNAL OF INEQUALITIES AND APPLICATIONS, 2013 (SCI-Expanded)
Article / Article
JOURNAL OF INEQUALITIES AND APPLICATIONS
Science Citation Index Expanded (SCI-EXPANDED), Scopus
graph, Harary index, graph operations, WIENER INDEX, TOPOLOGICAL INDEXES, HYPER-WIENER, TREES
Bursa Uludag University Affiliated:
The Harary index is defined as the sum of reciprocals of distances between all pairs of vertices of a connected graph. In this paper, expressions for the Harary indices of the join, corona product, Cartesian product, composition and disjunction of graphs are derived and the indices for some well-known graphs are evaluated. In derivations some terms appear which are similar to the Harary index and we name them the second and third Harary index.