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个人信息Personal Information
副教授
博士生导师
硕士生导师
性别:女
毕业院校:大连理工大学
学位:博士
所在单位:计算机科学与技术学院
学科:计算机软件与理论
联系方式:0411-84706009-3913
电子邮箱:xirongxu@dlut.edu.cn
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The Feedback Number of Knodel graph W-3,W-n
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论文类型:期刊论文
发表时间:2018-07-01
发表刊物:ARS COMBINATORIA
收录刊物:SCIE
卷号:140
页面范围:397-409
ISSN号:0381-7032
关键字:Feedback Vertex Set; Feedback Number; Knodel Graph; A-cyclic Subgraph
摘要:A subset of vertices of a graph G is called a feedback vertex set of G if its removal results in an acyclic subgraph. Use f (n) to denote the minimum cardinality over all feedback vertex sets of Knodel graph W-3,W-n. In this paper, we study the feedback number of Knodel graph W-3,W-n. We construct an acyclic subset of W-3,W-n and prove that f (n) = [n+2/4] for even n >= 8.