independence number;
critical graph;
edge coloring;
class one;
class two;
D O I:
10.1016/j.disc.2006.03.040
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
In 1968, Vizing conjectured that, if G is a Delta-critical graph with n vertices, then alpha(G) <= n/2, where alpha(G) is the independence number of G. In this note, we verify this conjecture for n <= 2 Delta. (c) 2006 Elsevier B.V. All rights reserved.
机构:
Nankai Univ, LPMC, Sch Stat & Data Sci, Tianjin 300071, Peoples R China
Nankai Univ, KLMDASR, Tianjin 300071, Peoples R ChinaNankai Univ, LPMC, Sch Stat & Data Sci, Tianjin 300071, Peoples R China
Lei, Hui
Lian, Xiaopan
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h-index: 0
机构:
Nankai Univ, Ctr Combinator, Tianjin 300071, Peoples R China
Nankai Univ, LPMC, Tianjin 300071, Peoples R ChinaNankai Univ, LPMC, Sch Stat & Data Sci, Tianjin 300071, Peoples R China
Lian, Xiaopan
Meng, Xianhao
论文数: 0引用数: 0
h-index: 0
机构:
Nankai Univ, Ctr Combinator, Tianjin 300071, Peoples R China
Nankai Univ, LPMC, Tianjin 300071, Peoples R ChinaNankai Univ, LPMC, Sch Stat & Data Sci, Tianjin 300071, Peoples R China
Meng, Xianhao
Shi, Yongtang
论文数: 0引用数: 0
h-index: 0
机构:
Nankai Univ, Ctr Combinator, Tianjin 300071, Peoples R China
Nankai Univ, LPMC, Tianjin 300071, Peoples R ChinaNankai Univ, LPMC, Sch Stat & Data Sci, Tianjin 300071, Peoples R China
Shi, Yongtang
Wang, Yiqiao
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h-index: 0
机构:
Beijing Univ Chinese Med, Sch Management, Beijing 100029, Peoples R ChinaNankai Univ, LPMC, Sch Stat & Data Sci, Tianjin 300071, Peoples R China
机构:
Univ Maribor, Fac Nat Sci & Math, Maribor, Slovenia
Inst Math Phys & Mech, Ljubljana, SloveniaUniv Maribor, Fac Nat Sci & Math, Maribor, Slovenia
Bresar, Bostjan
Klavzar, Sandi
论文数: 0引用数: 0
h-index: 0
机构:
Univ Maribor, Fac Nat Sci & Math, Maribor, Slovenia
Inst Math Phys & Mech, Ljubljana, Slovenia
Univ Ljubljana, Fac Math & Phys, Ljubljana, SloveniaUniv Maribor, Fac Nat Sci & Math, Maribor, Slovenia