On second Zagreb index and coindex of some derived graphs
oleh: Bommanahal Basavanagoud, Gutman Ivan, Gali Chetana S.
| Format: | Article |
|---|---|
| Diterbitkan: | University of Kragujevac, Faculty of Science 2015-01-01 |
Deskripsi
The second Zagreb index is defined as the sum of the products of the degrees of adjacent vertices. In this note, we examine the second Zagreb indices of some derived graphs and find expressions for these in terms of vertex degrees.