Sharp bounds on the inverse sum indeg index

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• 作者：Farzaneh Falahati-Nezhad^a ; ^{f.falahati@safadashtiau.ac.ir} ; Mahdieh Azari^b ; ^{azari@kau.ac.ir} ; ^{mahdie.azari@gmail.com} ; Tomislav Do&scaron ; lić^c ; ^{doslic@grad.hr}
• 关键词：Inverse sum indeg index ; Zagreb indices ; Randić index ; Sum-connectivity index ; Harmonic index ; Forgotten index
• 刊名：Discrete Applied Mathematics
• 出版年：2017
• 出版时间：30 January 2017
• 年：2017
• 卷：217
• 期：part_P2
• 页码：185-195
• 全文大小：407 K
• 卷排序：217

文摘

The inverse sum indeg index is a recently-introduced bond-additive descriptor that was selected by Vukičević and Gašperov (2010) as a significant predictor of total surface area of octane isomers. In this paper, we present several sharp upper and lower bounds on the inverse sum indeg index in terms of some graph parameters such as the order, size, radius, number of pendant vertices, minimal and maximal vertex degrees, and minimal non-pendent vertex degree, and relate this index to various well-known graph invariants such as the ordinary and multiplicative Zagreb indices, Randić indices, sum-connectivity index, modified Zagreb index, harmonic index, forgotten index, and eccentric connectivity index.