Aslan, E2024-07-182024-07-181842-65732065-3824http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/2117Atom bond connectivity index is a topological index was defined as ABC(G) = Sigma(UV is an element of E(G)) root d(u)+d(v)-2/d(u)d(v) where d(v) denotes the degree of vertex v of G. Recently, M. Ghorbani et al. introduced a new version of atom-bond connectivity (ABC4) index as ABC(4)(G) = Sigma(UV is an element of E(G)) root S(u)+S(v)-2/S(u)s(v) and where S-u = Sigma(v is an element of Ng(u))d(v) and N-G(u) = {v is an element of V(G)vertical bar uv is an element of E(G)}. In this paper we compute the fourth atom-bond connectivity index for nanocones.EnglishArticle