The and -Analogs of Zagreb Indices and Coindices of Graphs
Toufik Mansour, Chunwei Song
Source abstract
The first and second Zagreb indices were first introduced by Gutman and Trinajstić (1972). It is reported that these indices are useful in the study of anti-inflammatory activities of certain chemical instances, and in elsewhere. Recently, the first and second Zagreb coindices, a new pair of invariants, were introduced in Došlić (2008). In this paper we introduce the and ()-analogs of the above Zagreb indices and coindices and investigate the relationship between the enhanced versions to get a unified theory.
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