Abstract
Topological indices play an important role in mathematical chemistry especially in the quantitative structure–property relationship and quantitative structure–activity relationship studies. Recent research indicates that the augmented Zagreb index (AZI) possess the best correlating ability among several topological indices to predict the certain physico-chemical properties of particular types of molecules. In the present work, several novel bounds (lower and upper) for the AZI in terms of first geometric–arithmetic index, Randić index, atom-bond connectivity index, sum-connectivity index, modified second Zagreb index and harmonic index are established. Moreover, the geometric–arithmetic index and modified second Zagreb index are also among the well known topological indices. Various relations between these two topological indices and some of the aforementioned indices are also derived.
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The authors would like to express their sincere gratitude to the anonymous referees for reviewing the manuscript twice and for their insightful comments and valuable suggestions, which led to a number of improvements in the earlier versions of the manuscript.
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Ali, A., Bhatti, A.A. & Raza, Z. Further Inequalities Between Vertex-Degree-Based Topological Indices. Int. J. Appl. Comput. Math 3, 1921–1930 (2017). https://doi.org/10.1007/s40819-016-0213-4
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DOI: https://doi.org/10.1007/s40819-016-0213-4