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On Comparing Zagreb Indices of Graphs
- Source :
- Volume: 41, Issue: 2 223-230, Hacettepe Journal of Mathematics and Statistics
- Publication Year :
- 2014
- Publisher :
- Hacettepe Üniversitesi, 2014.
-
Abstract
- For a (molecular) graph, the first Zagreb index M1 is equal to the sum of the squares of the degrees of the vertices, and the second Zagreb index M2 is equal to the sum of the products of the degrees of pairs of adjacent vertices. It is well-known that for connected or disconnected graphs, M2/m ≥ M1/n does not hold always. In K. C. Das (On comparing Zagreb indices of graphs, MATCH Commun. Math. Comput. Chem. 63, 433–440, 2010), it has been shown that the above relation holds for a special kind of graph. Here we continue our search for special kinds of graph for which the above relation holds.
Details
- Language :
- English
- ISSN :
- 2651477X
- Database :
- OpenAIRE
- Journal :
- Volume: 41, Issue: 2 223-230, Hacettepe Journal of Mathematics and Statistics
- Accession number :
- edsair.tubitakulakb..90d4d9d52e302a42ffc2afa62032b187