Y-index and S-index based new topological indices of Titania nanotubes in graph

Abstract

Topological index is a numerical descriptor of a molecule; it is found that there is strong correlation between the properties of chemical compounds and their molecular structure based on a specific topological feature of the corresponding molecular graph. A topological index can be thought of as the conversion of a chemical structure into a real number. Titania nanotubes are a well-known semiconductor with a wide range of technological applications including biomedical devices, dye-sensitized solar cells, and so on. In this study, we introduce various types of topological indices based on Y -index and S-index of molecular graphs. Exact expressions for various topological indices of Titania (Tio2)nanotubes are represented.