Journal of Mathematical Chemistry

, Volume 47, Issue 1, pp 210–218 | Cite as

On general sum-connectivity index

ORIGINAL PAPER

Abstract

We report some properties especially lower and upper bounds in terms of other graph invariants for the general sum-connectivity index which generalizes both the ordinary sum-connectivity index and the first Zagreb index. Additionally, we give the Nordhaus-Gaddum-type result for the general sum-connectivity index.

Keywords

Randić connectivity index Sum-connectivity index General Randić connectivity index General sum-connectivity index 

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of MathematicsSouth China Normal UniversityGuangzhouChina
  2. 2.The Rugjer Bošković InstituteZagrebCroatia

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