Lower bound for the size of maximal nontraceable graphs

被引:0
|
作者
Frick, M [1 ]
Singleton, J [1 ]
机构
[1] Univ S Africa, ZA-0003 Unisa, South Africa
来源
ELECTRONIC JOURNAL OF COMBINATORICS | 2005年 / 12卷 / 01期
关键词
maximal nontraceable; hamiltonian path; traceable; nontraceable; nonhamiltonian;
D O I
暂无
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let 9(n) denote the minimum number of edges of a maximal nontraceable graph of order n. Dudek, Katona and Wojda (2003) showed that g(n) >= [3n-2/2]-2 for n >= 20 and g(n) <= [3n-2/2] for n >= 54 as well as for n is an element of I = {22, 23, 30, 31, 38, 39, 40, 41, 42, 43, 46, 47, 48, 49, 50, 51}. We show that g(n) = [3n-2/2] for n >= 54 as well as for n is an element of I boolean OR {12, 13} and we determine g(n) for n <= 9.
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