A FAST ALGORITHM FOR EQUITABLE COLORING

被引:47
|
作者
Kierstead, Henry A. [1 ]
Kostochka, Alexandr V. [2 ,5 ]
Mydlarz, Marcelo [4 ]
Szemeredi, Endre [3 ]
机构
[1] Arizona State Univ, Sch Math & Stat Sci, Tempe, AZ 85287 USA
[2] Univ Illinois, Dept Math, Urbana, IL 61801 USA
[3] Rutgers State Univ, Dept Comp Sci, Piscataway, NJ 08854 USA
[4] Yahoo Res Latin Amer, Santiago, Chile
[5] Sobolev Inst Math, Novosibirsk 630090, Russia
基金
美国国家科学基金会; 俄罗斯基础研究基金会;
关键词
BLOW-UP LEMMA; THEOREM; GRAPHS;
D O I
10.1007/s00493-010-2483-5
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A proper vertex coloring of a graph is equitable if the sizes of color classes differ by at most one. The celebrated Hajnal-Szemeredi Theorem states: For every positive integer r, every graph with maximum degree at most r has an equitable coloring with r + 1 colors. We show that this coloring can be obtained in O(rn(2)) time, where n is the number of vertices.
引用
收藏
页码:217 / 224
页数:8
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