IMPROVED BOUNDS FOR THE CHROMATIC NUMBER OF THE LEXICOGRAPHIC PRODUCT OF GRAPHS

被引:0
|
作者
KASCHEK, R [1 ]
KLAVZAR, S [1 ]
机构
[1] UNIV MARIBOR, PF, MARIBOR 62000, SLOVENIA
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中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
An upper bound for the chromatic number of the lexicographic product of graphs is proved. It unifies and generalizes several known results and is in particular applied to characterize the graphs that have a complete core. An improved lower bound is also given.
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页码:1267 / 1274
页数:8
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