Vertex PI Index and Szeged Index of Certain Special Molecular Graphs
Li Yan1, Junsheng Li1, *, Wei Gao2
Identifiers and Pagination:Year: 2014
First Page: 19
Last Page: 22
Publisher Id: TOBIOTJ-8-19
Article History:Received Date: 22/09/2014
Revision Received Date: 30/09/2014
Acceptance Date: 02/12/2014
Electronic publication date: 31/12/2014
Collection year: 2014
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The vertex PI index and Szeged index are distance-based topological index which reflect certain structural features of organic molecules. Each structural feature of such organic molecule can be expressed as a graph. In this paper, we determine the vertex PI index and Szeged index of fan molecular graph, wheel molecular graph, gear fan molecular graph, gear wheel molecular graph, and their r-corona molecular graphs.