设G=(V,E)是一个简单图,D是V的一个子集,如果集合V-D的任意点都与D中的点相邻,则称D为图G的一个控制集.图G的最小控制集中的点数称为G的控制数.本文对哈密顿图的控制数进行了研究,证明了命题:如果n阶图G是一个最小度为5的哈密顿图,则图G的控制数就不大于5n/14.
[1] 邢化明, 王小英, XING Hua-ming, WANG Xiao-ying. 一类图的控制数的上界 [J]. 廊坊师范学院学报 2004.doi:10.3969/j.issn.1674-3210.2004.04.007
[2] GAREY M R, JOHNSON D S. Computers and intractability:a guide to the theory of NP-completeness [M]. San Franciso:W H Freeman 1979.
[3] ORE O. Theory of graphs [M]. Providence:Amer Math Soc Colloq Pub 1962.
[4] MCGUAIG W, SHEPHERD B. Domination in graphs with minimum degree two [J]. Journal of Graph Theory 1989, 13.
[5] REED B. PATHS, stars and the number three [J]. Comb Prob Comp 1996, 5.
[6] HAYNES T W, HEDETNIEMI S T, SLATER P J. Fundamentals of domination in graphs [M]. New Youk:Marcel Dekker 1998.
[7] CARO Y, RODITTY Y. A note on the k-domination number of a graph [J]. International Journal of Mathematics and Mathematical Sciences 1990, 13.
[8] CLARK W E, DUNNING L A. Tight upper bounds for the domination numbers of graphs with given order and minimum degree [J]. Electronic journal of Combinatorics 1997, 4.