## Abstract

The aim in this paper is to computing the Szeged Index (the vertex version) and its two new versions (the revised Szeged index and the normalized revised Szeged index) of the Polycyclic Aromatic Hydrocarbons PAHk. Let G be a connected graph. The vertex-set and edge-set of G denoted by V (G) and E(G) respectively. The distance between the vertices u and v, d(u, v), in a graph is the number of edges in a shortest path connecting them. The Szeged index of the graph G is defined as Sz(G) = e ∈ E(G)[nu(e , G) × nv (e, G)], where nu(e , G) = {x , x ∈ V(G), d(u,x) < d(x,v)}and nv(e , G)= {x , x ∈ V(G), d(v,x) < d( x,u)}.

Original language | English |
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Pages (from-to) | 8874-8878 |

Number of pages | 5 |

Journal | Journal of Computational and Theoretical Nanoscience |

Volume | 13 |

Issue number | 11 |

DOIs | |

Publication status | Published - 2016 |

## Keywords

- Normalized revised szeged index
- Polycyclic aromatic hydrocarbons PAHk
- Revised szeged index
- Szeged index
- Wiener index

## ASJC Scopus subject areas

- General Chemistry
- General Materials Science
- Condensed Matter Physics
- Computational Mathematics
- Electrical and Electronic Engineering