Large degree vertices in longest cycles of graphs, II

被引:2
作者
Li, Binlong [1 ]
Xiong, Liming [2 ,3 ]
Yin, Jun [4 ]
机构
[1] Northwestern Polytech Univ, Dept Appl Math, 0, Xian 710072, Shaanxi, Peoples R China
[2] Beijing Inst Technol, Sch Math & Stat, Beijing 100081, Peoples R China
[3] Beijing Inst Technol, Beijing Key Lab MCAACI, Beijing 100081, Peoples R China
[4] Qinghai Normal Univ, Sch Comp Sci, Xining 810008, Qinghai, Peoples R China
关键词
longest cycle; connectivity; independent number; large degree vertex;
D O I
10.5614/ejgta.2019.7.2.7
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper, we consider the least integer d such that every k-connected graph G of order n (and of independent number alpha) has a longest cycle containing all vertices of degree at least d. We completely determine the d when k = 2. We propose a conjecture for those k-connected graph, where k >= 3.
引用
收藏
页码:277 / 299
页数:23
相关论文
共 14 条
  • [1] CYCLES THROUGH SPECIFIED VERTICES
    BOLLOBAS, B
    BRIGHTWELL, G
    [J]. COMBINATORICA, 1993, 13 (02) : 147 - 155
  • [2] Bondy J.A., 2008, GTM
  • [3] METHOD IN GRAPH THEORY
    BONDY, JA
    CHVATAL, V
    [J]. DISCRETE MATHEMATICS, 1976, 15 (02) : 111 - 135
  • [4] Chvatal V., 1972, Discrete Math, V2, P111, DOI DOI 10.1016/0012-365X(72)90079-9
  • [5] Dirac G. A., 1952, Proc. London Math. Soc, V3, P69, DOI DOI 10.1112/PLMS/S3-2.1.69
  • [6] On cycles through a given vertex in multipartite tournaments
    Guo, YB
    Pinkernell, A
    Volkmann, L
    [J]. DISCRETE MATHEMATICS, 1997, 164 (1-3) : 165 - 170
  • [7] Harant J., 2008, DISCUSS MATH GRAPH T, V28, P441
  • [8] LARGE DEGREE VERTICES IN LONGEST CYCLES OF GRAPHS, I
    Li, Binlong
    Xiong, Liming
    Yin, Jun
    [J]. DISCUSSIONES MATHEMATICAE GRAPH THEORY, 2016, 36 (02) : 363 - 382
  • [9] Forbidden subgraphs for longest cycles to contain vertices with large degrees
    Li, Binlong
    Zhang, Shenggui
    [J]. DISCRETE MATHEMATICS, 2015, 338 (10) : 1681 - 1689
  • [10] Li BL, 2013, ELECTRON J GRAPH THE, V1, P1