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检索条件"主题词=Laplacian spectrum"
4 条 记 录,以下是1-10 订阅
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A RELATION BETWEEN THE MATCHING NUMBER AND laplacian spectrum OF A TREE
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Journal of Systems Science & Complexity 2005年 第2期18卷 174-178页
作者: FAN Yizheng (Department of Mathematics, Nanjing Normal University, Nanjing 210097, China School of Mathematics and Computational Science, Anhui University, Hefei 230039, China. Department of Mathematics Nanjing Normal University Nanjing 210097 China
Let T be a tree with matching number μ(T). In this paper we obtain the following result: If T has no perfect matchings, thenμ(T) is a lower bound for the number of nonzero laplacian eigenvalues of T which are smalle... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Double quasi-star tree is determined by its laplacian spectrum
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Journal of Shanghai University(English Edition) 2010年 第3期14卷 163-166页
作者: 卢鹏丽 张晓东 张远平 School of Computer and Communication Lanzhou University of Technology Department of Mathematics Shanghai Jiao Tong University
Let Hn(p,q) be a tree obtained from two stars K1,p and K1,q by identifying the center of K1,p with one end of a path Pn and the center of K1,q with the other end of *** call Hn(p,p-1) a double quasi-star *** this ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Synchronization of Networked Systems and laplacian-spectrum Modification
Synchronization of Networked Systems and Laplacian-Spectrum ...
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第二十六届中国控制会议
作者: Wu Jianxin,Qin Huashu,Hong Yiguang Key Lab of Systems and Control,Institute of Systems Science,Chinese Academy of Sciences,Beijing 100080,P.R.China
In this paper,synchronization-related problems of networked systems are *** necessary conditions are given with help of the estimated bounds of the eigenvalues of the coupled *** conditions are easy to check since we ... 详细信息
来源: cnki会议 评论
laplacian Spectral Characterization of a Kind of Unicyclic Graphs
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Journal of Mathematical Research with Applications 2014年 第5期34卷 505-516页
作者: Luhua WANG Ligong WANG Department of Applied Mathematics School of ScienceNorthwestern Polytechnical University
Let H(n;q,n1,n2,n3,n4) be a unicyclic graph with n vertices containing a cycle Cq,and four hanging paths Pn1+1,Pn2+1,Pn3+1and Pn4+1attached at the same vertex of the *** this paper,it is proved that all unicyclic gr... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论