A structural result for 3-graphs

被引:1
作者
Frankl, P. [1 ]
机构
[1] Renyi Inst, Budapest, Hungary
关键词
Hypergraphs; Forbidden configurations; Extremal problems; ERDOS-KO-RADO; THEOREM; SETS;
D O I
10.1016/j.disc.2016.09.036
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Suppose that F subset of (([n])(3)) contains no three sets whose intersection is empty and their union has size at most 6. We prove a structure theorem for such families which easily implies the best possible bound, |F| <= ((n-1)(2)). (C) 2016 Elsevier B.V. All rights reserved.
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页码:1039 / 1041
页数:3
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