ON THE CHARACTERIZATION OF GRAPHS WITH PENDENT VERTICES AND GIVEN NULLITY

被引:0
|
作者
Liu, Bolian [1 ]
Huang, Yufei [1 ]
Chen, Siyuan [1 ]
机构
[1] S China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R China
关键词
Eigenvalue; Nullity; Pendent vertex;
D O I
暂无
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let G be a graph with n vertices. The nullity of G, denoted by eta(G), is the multiplicity of the eigenvalue zero in its spectrum. In this paper, we characterize the graphs (resp. bipartite graphs) with pendent vertices and nullity eta, where 0 < eta <= n. Moreover, the minimum (resp. maximum) number of edges for all (connected) graphs with pendent vertices and nullity eta are determined, and the extremal graphs are characterized.
引用
收藏
页码:719 / 734
页数:16
相关论文
共 50 条
  • [31] Remarks on the nullity of graphs
    Ghorbani, Modjtaba
    Songhori, Mahin
    UTILITAS MATHEMATICA, 2016, 101 : 139 - 147
  • [32] A Characterization of Bicyclic Signed Graphs with Nullity n-7
    Guojun LI
    Aimei YU
    Journal of Mathematical Research with Applications, 2015, 35 (01) : 1 - 10
  • [33] Maximizing the signless Laplacian spectral radius of graphs with given diameter or cut vertices
    Wang, Jianfeng
    Huang, Qiongxiang
    LINEAR & MULTILINEAR ALGEBRA, 2011, 59 (07) : 733 - 744
  • [34] Bounds of nullity for complex unit gain graphs
    Chen, Qian-Qian
    Guo, Ji-Ming
    LINEAR ALGEBRA AND ITS APPLICATIONS, 2024, 699 : 569 - 585
  • [35] Minimum energy on trees with k pendent vertices
    Yu, Aimei
    Lv, Xuezheng
    LINEAR ALGEBRA AND ITS APPLICATIONS, 2006, 418 (2-3) : 625 - 633
  • [36] On the nullity of graphs with pendant trees
    Gong, Shi-Cai
    Fan, Yi-Zheng
    Yin, Zhi-Xiang
    LINEAR ALGEBRA AND ITS APPLICATIONS, 2010, 433 (07) : 1374 - 1380
  • [37] The number of P-vertices in a matrix with maximum nullity
    Fernandes, Rosario
    da Cruz, Henrique F.
    LINEAR ALGEBRA AND ITS APPLICATIONS, 2018, 547 : 168 - 182
  • [39] The nullity of bicyclic signed graphs
    Fan, Yi-Zheng
    Du, Wen-Xue
    Dong, Chun-Long
    LINEAR & MULTILINEAR ALGEBRA, 2014, 62 (02) : 242 - 251
  • [40] On the nullity of a family of tripartite graphs
    Farooq, Rashid
    Malik, Mehar Ali
    Naureen, Qudsia
    Pirzada, Shariefuddin
    ACTA UNIVERSITATIS SAPIENTIAE INFORMATICA, 2016, 8 (01) : 96 - 107