On the inverse sum indeg index of some graph operations
Havare, Ã. (2020). On the inverse sum indeg index of some graph operations. EKB Journal Management System, 28(1), 1-11. doi: 10.1186/s42787-020-00089-1
Özge Çolakoglu Havare. "On the inverse sum indeg index of some graph operations". EKB Journal Management System, 28, 1, 2020, 1-11. doi: 10.1186/s42787-020-00089-1
Havare, Ã. (2020). 'On the inverse sum indeg index of some graph operations', EKB Journal Management System, 28(1), pp. 1-11. doi: 10.1186/s42787-020-00089-1
Havare, Ã. On the inverse sum indeg index of some graph operations. EKB Journal Management System, 2020; 28(1): 1-11. doi: 10.1186/s42787-020-00089-1

On the inverse sum indeg index of some graph operations

Journal of the Egyptian Mathematical Society
Volume 28, Issue 1, June 2020, Page 1-11  XML PDF (509.89 K)
DOI: 10.1186/s42787-020-00089-1
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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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