On Second Geometric-Arithmetic Index of Graphs

Authors

  • B. FURTULA University of Kragujevac, Serbia
  • I. GUTMAN University of Kragujevac, Serbia
  • K. DAS Sungkyunkwan University, Republic of Korea
Abstract:

The concept of geometric-arithmetic indices (GA) was put forward in chemical graph theory very recently. In spite of this, several works have already appeared dealing with these indices. In this paper we present lower and upper bounds on the second geometric-arithmetic index (GA2) and characterize the extremal graphs. Moreover, we establish Nordhaus-Gaddum-type results for GA2.

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Journal title

volume 1  issue Issue 2 (Special Issue Dedicated to the Pioneering Role of Ivan Gutman In Mathematical Chemistry)

pages  17- 28

publication date 2010-04-01

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