EVERY 8-TRACEABLE ORIENTED GRAPH IS TRACEABLE

被引:2
|
作者
van Aardt, Susan A. [1 ]
机构
[1] Univ South Africa, Dept Math Sci, POB 392, ZA-0003 Unisa, South Africa
基金
新加坡国家研究基金会;
关键词
oriented graph; traceable; hypotraceable; k-traceable; generalized tournament;
D O I
10.7151/dmgt.1966
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A digraph of order n is k-traceable if n >= k and each of its induced subdigraphs of order k is traceable. It is known that if 2 <= k <= 6, every k-traceable oriented graph is traceable but for k = 7 and for each k >= 9, there exist k-traceable oriented graphs that are nontraceable. We show that every 8-traceable oriented graph is traceable.
引用
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页码:963 / 973
页数:11
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