Asif, FatimaZahid, ZohaibCancan, Murat2025-05-102025-05-1020200972-05292169-006510.1080/09720529.2020.18166962-s2.0-85094681171https://doi.org/10.1080/09720529.2020.1816696https://hdl.handle.net/20.500.14720/13791Graph invariants are numerical values assigned to some molecular graph G(M) to characterize its topological properties. The second neighbourhood or a 2 -distance degree of any vertex v in a graph G(M) is the cardinality of its second neighbors. In this research article, we formulated some expressions for the leap Zagreb indices, leap hyper-indices and F - leap indices, depending on the second degree of a vertex, of a family of a molecular graph called Polycyclic Aromatic Hydrocarbons PAH(s).eninfo:eu-repo/semantics/closedAccessLeap Zagreb IndicesLeap Hyper-Zagreb IndicesF-Leap IndicesPolycyclic Aromatic Hydrocarbons Pah(N)Second DegreeArticle236N/AQ212691277WOS:000583370300013