广东工业大学学报 ›› 2005, Vol. 22 ›› Issue (3): 121-124.

• 综合研究 • 上一篇    

图的最大亏格与割点数

  

  1. 广东工业大学应用数学学院; 湖南师范大学数学与计算机科学学院 广东广州510090; 湖南长沙410081;
  • 出版日期:2005-07-02 发布日期:2005-07-02

The Maximum Genus of a Graph and the Number of Cut Vertexes

  1. (1.Faculty of Applied Mathematics,Guangdong University of Technology,Guangzhou 510090,China;2.Faculty of Mathematics and Computer Science,Hunan Normal University,Changsha 410081,China)
  • Online:2005-07-02 Published:2005-07-02

摘要: 关于图的最大亏格的研究,通常都是结合图的一些不变量,如连通性、直径、围长、点的度等.本文联系着图的割点数,研究图的最大亏格下界,得到了一些新的结果. 

关键词: 图最大亏格; 上可嵌入性; Betti亏数; 割点;

Abstract: Studies about the maximum gemus of a graph are usually based on some invariariable parameters,such as connectivity,diameter,the degree of vertexes.In contact with the number of cut vertexes of a graph,this paper studies the lower boundary of maximum genus and receives some new results.

Key words: graph; maximum genus; upper embeddability; Betti deficiency; cut vertex;

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[2] 黄元秋,刘彦佩.  关于图的最大亏格的一个定理改进[J]. 应用数学. 1998(02)

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