Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource ON THE INDICES OF CERTAIN GRAPH PRODUCTS Subject The topic of the resource Lexicographic product; Sombor index; Tensor product Description An account of the resource Molecular descriptors are numerical graph invariants that are used to study the chemical structure of molecules. In this paper, we determine the upper bound of the Sombor index based on four operations involving the subdivision graph, semi-total point graph, semi-total line graph, and total graph related to the lexicographic and tensor product. The exact expressions of the first reformulated Zagreb index and the second hyper-Zagreb index of the tensor product are formulated on the basis of the four significant graphs. Further, the descriptors for certain standard graphs are obtained and the graphical comparison for the first reformulated Zagreb index has also been illustrated to understand the result better. 2025 University of Isfahan Creator An entity primarily responsible for making the resource Sarkar I.; Nanjappa M. Source A related resource from which the described resource is derived Transactions on Combinatorics, Vol-14, No. 2, pp. 117-134. Publisher An entity responsible for making the resource available University of Isfahan Date A point or period of time associated with an event in the lifecycle of the resource 2025-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.22108/toc.2024.136176.2034" target="_blank" rel="noreferrer noopener">https://doi.org/10.22108/toc.2024.136176.2034</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85209238190&amp;doi=10.22108%2Ftoc.2024.136176.2034&amp;partnerID=40&amp;md5=06f2abed68490ba938bd07e46c1d3c9a" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85209238190&amp;doi=10.22108%2ftoc.2024.136176.2034&amp;partnerID=40&amp;md5=06f2abed68490ba938bd07e46c1d3c9a</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 22518657 Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Sarkar I., Department of Mathematics, CHRIST (Deemed to be University), Bengaluru, 560029, India; Nanjappa M., Department of Mathematics, CHRIST (Deemed to be University), Bengaluru, 560029, India