Almost minimum diameter orientations of semicomplete multipartite and extended digraphs

被引:6
|
作者
Gutin, G [1 ]
Koh, KM
Tay, EG
Yeo, A
机构
[1] Royal Holloway Univ London, Dept Comp Sci, Egham TW20 0EX, Surrey, England
[2] Natl Univ Singapore, Dept Math, Singapore 119260, Singapore
[3] Nanyang Technol Univ, Math & Math Educ Grp, Singapore 259756, Singapore
关键词
D O I
10.1007/s003730200036
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
An orientation of a digraph D is a spanning subdigraph of D obtained from D by deleting exactly one arc between x and y for every pair x not equal y of vertices Such that both xy and yx are in D. Almost minimum diameter orientations of certain semicomplete multipartite and extended digraphs are considered, several generalizations of results on orientations of undirected graphs are obtained, some conjectures are posed.
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页码:499 / 506
页数:8
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