On the hyper Wiener index of hexagonal chains
                
                        
                        ABBAS HEYDARI1,*
                            
                        
                    
                    Affiliation
                    
                        
                        - Department of Mathematics, Arak branch, Islamic Azad University, Arak, Iran
 
                        
                    
                     
        
        Abstract
        The hyper Wiener index of a molecular graph is defined as one half of the sum of the distances and the square distances
between all (unordered) pairs of vertices of the graph. In this paper computation of the hyper Wiener index of some
extremal hexagonal chains are purposed..
        Keywords
        Topological Index, Hyper Wiener index, Hexagonal chains.
        Citation
        ABBAS HEYDARI, On the hyper Wiener index of hexagonal chains, Optoelectronics and Advanced Materials - Rapid Communications, 6, 3-4, March-April 2012, pp.491-494 (2012).
        Submitted at: Jan. 2, 2012
 
        Accepted at: April 11, 2012