Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4949791 | Discrete Applied Mathematics | 2017 | 11 Pages |
Abstract
The inverse sum indeg index is a recently-introduced bond-additive descriptor that was selected by VukiÄeviÄ and GaÅ¡perov (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, RandiÄ indices, sum-connectivity index, modified Zagreb index, harmonic index, forgotten index, and eccentric connectivity index.
Related Topics
Physical Sciences and Engineering
Computer Science
Computational Theory and Mathematics
Authors
Farzaneh Falahati-Nezhad, Mahdieh Azari, Tomislav DoÅ¡liÄ,