On the inverse sum indeg index of some graph operations | ||
| Journal of the Egyptian Mathematical Society | ||
| Volume 28, Issue 1, June 2020, Pages 1-11 PDF (509.89 K) | ||
| DOI: 10.1186/s42787-020-00089-1 | ||
| Author | ||
| Özge Çolakoglu Havare | ||
| Department of Mathematics, University of Mersin, Mersin, Turkey | ||
| Abstract | ||
| Topological indices are the molecular descriptors that describe the structures of chemical compounds. They are used in isomer discrimination, structure-property relationship, and structure-activity relations. The topological indices are used to predict certain physico-chemical properties such as boiling point, enthalpy of vaporization, and stability. In this paper, the inverse sum indeg index is studied. This index (ISI(G)) is defined as dudv du+dv . The inverse sum indeg index of some graph operations is computed. These operations are join, sequential join, cartesian product, lexicographic product, and corona operation. | ||
| Keywords | ||
| Topological index; Inverse sum indeg index; Corona operation; Lexicographic product; Cartesian product | ||
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