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圆长为k的n阶单圈图中第二大Merrifield-Simmons指数 被引量:4

The Second Largest Merrifield-Simmons Index of the Univyclic Graphs of Oder n with Cycle Length k
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摘要 图的独立集数目在化学上称为Merrifield-Simmons指数,它是化学图论中应用比较广泛的拓扑指数之一.文献[2]得到n阶单圈图中具有最大、次大以及最小的Merrifield-Simmons指数的图类,以及讨论了当圈长的为k时具有最大Merrifield-Simmons指数的图.本文给出了圈长为k的n阶单圈图中第二大Merrifield-Simmons指数. The number of independent sets of a graph is called the Merrifield - Simmons index of the graph in chemistry, and it is one of the most popular topological indices in chemical graph theory. A. Pedersen got the unicyclic graphs of oder n with the largest, the second largest and the smallest Merrifield - Simmons indices. In this paper, we give the unicyclic graph of oder n with the unique cycle length k and the second largest Merrifield - Simmons indices.
出处 《南华大学学报(自然科学版)》 2006年第3期35-38,共4页 Journal of University of South China:Science and Technology
基金 国家自然科学基金资助项目(10471037) 湖南省教育厅基金资助项目(05A037)
关键词 单圈图 独立集 Merrifield—Simmons指数 unicyclic graphs Indenpendent set Merrifield - Simmons index
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参考文献8

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同被引文献24

  • 1江蓉,任海珍.一类2-共振六角系统的性质与构造[J].西南师范大学学报(自然科学版),2007,32(3):1-5. 被引量:4
  • 2马海成.路并的匹配等价图数[J].西南师范大学学报(自然科学版),2007,32(3):6-9. 被引量:10
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  • 4Prodinger H, Tichy R F. Fibonacci Numbers of Graphs [J]. The Fibonacci Quarterly, 1982, 20(1): 16 -21.
  • 5Pedersen A S, Vestergaard P D. The Number of Independent Sets in Unicyclic Graphs [J]. Discrete Appl Math, 2005, 152(2) : 246 -- 256.
  • 6Wang Bo Ye Chengfu.The Third Largest Value of o-index about Unicyclic Graphs .山西大学学报:自然科学版,2008,31(3):24-27.
  • 7Merrifield R E, Simmons H E. Topological Methods in Chemistry [M]. New York: Wiley, 1989: 17- 36.
  • 8Zhao Haixing, Li Xueliang. On the Fibonacci Numbers of Trees [J]. The Fibonaeci Quartly, 2005, 53(2): 26 -33.
  • 9Li X, Li Z, Wang L. The Inverse Problems for Some Topological Indices in Combinatiorial Chemistry [J]. Computational Biology, 2003, 10(1):47 -- 55.
  • 10Bandy J A,Murty U S R.Graph Theory with Application[M].Amsterdam:Macmillan,1976.15-33.

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