J4 ›› 2011, Vol. 46 ›› Issue (11): 44-47.

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Orderings of a class of bicyclic graphs with respect to two kinds of indices

ZHOU Xu-ran, WANG Li-gong*   

  1. Department of Applied Mathematics, Northwestern Polytechnical University, Xi′an 710072, Shaanxi, China
  • Received:2010-06-07 Online:2011-11-20 Published:2011-11-30

Abstract:

The Merrifield-Simmons index and Hosoya index of the class of bicyclic graphs Tr,k,ln,p,q are investigated and their orderings with respect to these two indices are obtained.

Key words:  bicyclic graphs; Merrifield-Simmons index; Hosoya index; order

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