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MAXIMUM TREES OF FINITE SEQUENCES
作者姓名:WU  SHIQUAN
摘    要:MAXIMUMTREESOFFINITESEQUENCES¥WUSHIQUANAbstract:Letn,s1,s2,...,snbenon-negativeintegersandM(s1,s2,...,sn)={(a1,a2,...,a.)|aii...

收稿时间:23 March 1993

Maximum trees of finite sequences
WU SHIQUAN.MAXIMUM TREES OF FINITE SEQUENCES[J].Applied Mathematics A Journal of Chinese Universities,1995,10(2):223-228.
Authors:Wu Shiquan
Abstract:Letn,s 1,s 2,...,s n be non-negative integers andM(s 1,s 2,...,s n)=a 1,a 2,...,a n)|a iis an integer and 0≤a is i for eachi∼. In this paper, the cardinality of maximum trees of finite sequences inM(s 1,s 2,...,s n) is obtained, which generalizes some of Frankl’s results on families of finite sets with prescribed cardinalities for pairwise intersections. Partly supported by the Postdoctoral Fellowship Foundation of China
Keywords:Tree of subsets  finite sequences  tree of finite sequences  
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