Nearly-linear monotone paths in edge-ordered graphs

被引:7
|
作者
Bucic, Matija [1 ]
Kwan, Matthew [2 ]
Pokrovskiy, Alexey [3 ]
Sudakov, Benny [1 ]
Tran, Tuan [4 ]
Wagner, Adam Zsolt [1 ]
机构
[1] Swiss Fed Inst Technol, Dept Math, CH-8092 Zurich, Switzerland
[2] Stanford Univ, Dept Math, Stanford, CA 94305 USA
[3] Birkbeck Univ London, Dept Econ Math & Stat, London WC1E 7HX, England
[4] Hanoi Univ Sci & Technol, Sch Appl Math & Informat, Hanoi, Vietnam
关键词
EXTREMAL COMBINATORICS; REGULAR SUBGRAPHS; ALTITUDE;
D O I
10.1007/s11856-020-2035-7
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
How long a monotone path can one always find in any edge-ordering of the complete graphK(n)? This appealing question was first asked by Chvatal and Komlos in 1971, and has since attracted the attention of many researchers, inspiring a variety of related problems. The prevailing conjecture is that one can always find a monotone path of linear length, but until now the best known lower bound wasn(2/3-o(1)). In this paper we almost close this gap, proving that any edge-ordering of the complete graph contains a monotone path of lengthn(1-o(1)).
引用
收藏
页码:663 / 685
页数:23
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