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On the critical values in subset sum
European Journal of Combinatorics ( IF 1 ) Pub Date : 2020-05-27 , DOI: 10.1016/j.ejc.2020.103158
Jin-Hui Fang , Zhi-Kai Fang

For a sequence A of positive integers, let P(A) be the set of all integers which can be represented as the finite sum of distinct terms of A. In 2012, Chen and Fang proved that, for a sequence of integers B={b1<b2<}, if b1{4,7,8}{b:b11,bN} and bn+13bn+5 for all n1, then there exists an infinite sequence A of positive integers for which P(A)=NB; on the other hand, if b2=3b1+4, then such A does not exist. Recently, for b2=3b1+5, the authors determined the critical value for b3 such that there exists an infinite sequence A of positive integers for which P(A)=NB. In this paper, we fix the exact critical values for the above general terms.



中文翻译:

关于子集总和的临界值

对于序列 一种 的正整数,让 P一种 是所有整数的集合,可以表示为的不同项的有限和 一种。在2012年,Chen和Fang证明了,对于整数序列={b1个<b2<}如果 b1个{478}{bb11bñ}bñ+1个3bñ+5 对所有人 ñ1个,则存在无限序列 一种 正整数的 P一种=ñ; 另一方面,如果b2=3b1个+4,然后这样 一种不存在。最近,对于b2=3b1个+5,作者确定了 b3 这样就存在一个无限的序列 一种 正整数的 P一种=ñ。在本文中,我们为上述一般术语确定了确切的临界值。

更新日期:2020-05-27
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