| 摘要: | 
	         
			 
		     | 本论文研究了点着色图的无矛盾点连通数的问题,利用树的结构特征获得了特殊图类Tn,k关于无矛盾点连通数的上界和下界,TnΛ、TΛ和Λd关于无矛盾点连通数的上界. | 
	         
			
	         
				| 关键词:  无矛盾点连通数  树  上界  下界 | 
	         
			 
                | DOI: | 
           
            
                | 分类号:O157.5 | 
             
			 
             
                | 基金项目:国家自然科学基金项目(11771058);湖北省教育厅科学技术研究项目(D20191303). | 
             
           | 
           
                | CONFLICT-FREE VERTEX-CONNECTION NUMBER OF SEVERAL TREES | 
           
           
			
                | 
				
				ZHONG Yong, YAN Zh
						
				
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				School of Information and Mathematics, Yangtze University, 434000, China
				
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                | Abstract: | 
              
			
                | In this paper, we study the problem of the conflict-free vertex-connection number of vertex coloring graphs, and obtain an upper bound and a lower bound for the conflict-free vertex-connection number of Tn.k and an upper bound for the conflict-free vertex-connection number of TnΛ, TΛand Λd by using the structural characteristics of trees. | 
            
	       
                | Key words:  conflict-free vertex-connection number  tree  upper bound  lower bound |