| Summary: | The properties that characterize the different chemical compounds are closely related to the molecular structure of these compounds. A topological index is a number or numerical quantity derived from the graph of a chemical compound. It is used to model compounds' physical and chemical properties and activities, such as hexane isomers. It was presented new topological indices known as the domination and γ − domination topological indices. In this paper, we study the importance and applications of these indicators in determining some physical and chemical properties of hexane isomers. Moreover, the φp − polynomial is used in calculating these indices. © 2022 by the authors.
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