Bounds on the largest eigenvalues of trees with a given size of matching

被引:83
作者
Hou, YP [1 ]
Li, JS
机构
[1] Hunan Normal Univ, Dept Math, Changsha 410081, Hunan, Peoples R China
[2] Univ Sci & Technol China, Dept Math, Hefei 230026, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
tree; matching; the largest eigenvalue of a graph; upper bound;
D O I
10.1016/S0024-3795(01)00465-7
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Very little is known about upper bound for the largest eigenvalue of a tree with a given size of matching. In this paper, we find some upper bounds for the largest eigenvalue of a tree in terms of the number of vertices and the size of matchings, which improve some known results. (C) 2002 Elsevier Science Inc. All rights reserved.
引用
收藏
页码:203 / 217
页数:15
相关论文
共 8 条
  • [1] Bounds on the second largest eigenvalue of a tree with perfect matchings
    An, C
    [J]. LINEAR ALGEBRA AND ITS APPLICATIONS, 1998, 283 (1-3) : 247 - 255
  • [2] Bondy J. A., 1976, Graph theory with applications
  • [3] CVETKOVIC D, 1990, LINEAR MULTILINEAR A, V28, P3, DOI DOI 10.1080/03081089008818026
  • [4] Cvetkovic D. M., 1980, Spectra of Graphs-Theory and Application
  • [5] Hofmeister M, 1997, LINEAR ALGEBRA APPL, V260, P43, DOI 10.1016/S0024-3795(96)00249-2
  • [6] Li Qiao, 1979, Acta Mathematicae Applacatae Sinica, V2, P167
  • [7] Shao J.Y., 1991, SCI B, V18, P1361
  • [8] XU GH, 1997, COMBINATORICS GRAPH