Links in edge-colored graphs

被引:5
作者
Becu, J. M. [2 ]
Dah, M. [2 ]
Manoussakis, Y. [2 ]
Mendy, G. [1 ,2 ]
机构
[1] Ecole Super Polytech Dakar, Dept Genie Informat, LIRT, Dakar, Senegal
[2] Univ Paris 11, LRI, F-91405 Orsay, France
关键词
EULERIAN CYCLES; PATHS;
D O I
10.1016/j.ejc.2009.03.021
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A graph is k-linked (k-edge-linked), k >= 1, if for each k pairs of vertices x(1), y(1), ..., x(k), y(k), there exist k pairwise vertex-disjoint (respectively edge-disjoint) paths, one per pair x(i) and y(i), i = 1, 2, ..., k. Here we deal with the properly edge-colored version of the k-linked (k-edge-linked) problem in edge-colored graphs. In particular, we give conditions on colored degrees and/or number of edges, sufficient for an edge-colored multigraph to be k-linked (k-edge-linked). Some of the results obtained are the best possible. Related conjectures are proposed. (C) 2009 Published by Elsevier Ltd
引用
收藏
页码:442 / 460
页数:19
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