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    Topological Indices on Line Graph of Different Chemical Structures
    (Library Information Services, CUI Lahore, 2023) FA21-RMT-003; Minahil ijaz; Prof. Dr. Muhammad Hussain
    A topological index is a numerical measure that characterizes certain inherent properties or features (boiling point, stability and melting point, heat of creation and freezing point, and so on) of a Molecular graph representing some chemical compounds. These indices define topology and typically hold Graph invariant mathematical characteristics. The term ”molecular descriptor” refers to the process of turning chemical data from chemical com- pounds into meaningful numerical values. These molecular descriptors are commonly used in the investigation of quantitative structure-activity connections that provide insight on animated effects based on chemical structures. This study aims to investigate topological indices based on degrees, including Randic index, Sum connectivity index, Harmonic in- dex, First Zagreb, second zagreb and third zagreb indices, Augmented zagreb index, Hyper zagreb index, Atom bond connectivity index (ABC), Geometric arithmetic index (GA), In- verse sum indeg index (ISI) and The fourth iteration of the Atom bond connectivity index, the fifth iteration of the Geometric arithmetic index, and the Sanskruti index for line graph of Polythiophene Network.