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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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On the 3- t-Critical Graphs of Order (G) + 3
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论文类型:期刊论文
发表时间:2011-01-01
发表刊物:Utilitas Mathematica
收录刊物:Scopus
卷号:84
页面范围:273-285
ISSN号:03153681
摘要:Let t(G) be the total domination number of graph G, a graph G is k-total domination vertex critical (or just k- t-critical) if t (G) = k, and for any vertex v of G that is not adjacent to a vertex of degree one, t(G - v) = k - 1. Mojdeh and Rad [6] proposed an open problem: Does there exist a 3- t-critical graph G of order (G) + 3 with (G) odd? In this paper, we prove that there exists a 3- tcritical graph G of order (G) + 3 with odd (G) 9.