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    STUDIA CHEMIA - Issue no. 4 / 2010  
         
  Article:   SCHULTZ, MODIFIED SCHULTZ AND SZEGED INDICES OF A FAMILIY OF FULLERENES.

Authors:  ALI IRANMANESH, YASER ALIZADEH, SAMANE MIRZAIE.
 
       
         
  Abstract:  

Let G be a simple connected graph. Schultz and modified Schultz indices are defined as:
the degree of vertex u and d(u, ν) is the distance between u and ν. Let e be an edge of a graph G connecting the vertices u and ν. Define two sets

respectively. Szeged index of G is defined as:

In this paper we give a GAP program for computing the Schultz, the Modified Schultz and the Szeged indices of a simple connected graph. Also we compute and formulate these indices for a family of fullerenes by the software GAP and MAPLE.

Keywords: Schultz index, Modified Schultz index, Szeged index, C12 (n-1) fullerenes.

 
         
     
         
         
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