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On a relation between Szeged and Wiener indices of bipartite graphs

Authors :
Ivan Gutman
Mengmeng Liu
Xueliang Li
Lilly Chen
Source :
Transactions on Combinatorics, Vol 1, Iss 4, Pp 43-49 (2012)
Publication Year :
2012
Publisher :
University of Isfahan, 2012.

Abstract

Hansen et. al., using the AutoGraphiX software package, conjectured that the Szeged index Sz(G) and the Wiener index W(G) of a connected bipartite graph G with n ≥ 4 vertices and m ≥ n edges, obeys the relation Sz(G) − W(G) ≥ 4n − 8. Moreover, this bound would be the best possible. This paper offers a proof to this conjecture.

Details

Language :
English
ISSN :
22518657 and 22518665
Volume :
1
Issue :
4
Database :
Directory of Open Access Journals
Journal :
Transactions on Combinatorics
Publication Type :
Academic Journal
Accession number :
edsdoj.b1ca596862ff4e9f808f4ea7e6573591
Document Type :
article