A theorem on integer flows on Cartesian products of graphs

被引:16
作者
Imrich, W
Skrekovski, R
机构
[1] Montanuniv Leober, Dept Appl Math, A-8700 Leoben, Austria
[2] Univ Ljubljana, Dept Math, Ljubljana 1111, Slovenia
关键词
integer flows; Cartesian products;
D O I
10.1002/jgt.10100
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
It is shown that the Cartesian product of two nontrivial connected graphs admits a nowhere-zero 4-flow. If both factors are bipartite, then the product admits a nowhere-zero 3-flow. (C) 2003 Wiley Periodicals, Inc.
引用
收藏
页码:93 / 98
页数:6
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[4]  
Zhang C.-Q., 1997, INTEGER FLOWS CYCLE