A linear bound on the Manickam-Miklós-Singhi conjecture

A linear bound on the Manickam-Miklós-Singhi conjecture
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Manickam-Miklós-Singhi 猜想的线性界

DOI:
10.1016/j.jcta.2015.01.007
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发表时间:
2015
期刊:
J. Comb. Theory, Ser. A
影响因子:
--
通讯作者:
A. Pokrovskiy
A. Pokrovskiy
中科院分区:
--
文献类型:
--
作者:
A. Pokrovskiy

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假设我们有一个由n个实数组成的集合S,它们的和不是负的。K阶S的几个子集能有非负和?Manickam,MiklóS和Singhi猜想,对于n≥4k,答案是(n−1 k−1)。当n大于k时,这个猜想是成立的。最著名的界是Alon,Huang和Sudakov证明了这个猜想当n≥33 k 2时。在这篇文章中,我们证明了当n≥Ck时,有一个常数C使得猜想成立。这建立了一个距离猜想界一个常数因子的猜想。
Suppose that we have a set S of n real numbers which have nonnegative sum. How few subsets of S of order k can have nonnegative sum? Manickam, Miklós, and Singhi conjectured that for n≥ 4 k the answer is (n− 1 k− 1). This conjecture is known to hold when n is large compared to k. The best known bounds are due to Alon, Huang, and Sudakov who proved the conjecture when n≥ 33 k 2. In this paper we improve this bound by showing that there is a constant C such that the conjecture holds when n≥ C k. This establishes the conjecture in a range which is a constant factor away from the conjectured bound.
DOI: --
发表时间: 1986
期刊:
影响因子: --
作者:
Nachimuthu Manickam
通讯作者: Nachimuthu Manickam
DOI: --
发表时间: 2000
期刊:
影响因子: --
作者:
V. Lev
通讯作者: V. Lev
集合和向量空间的 Manickam-Miklós-Singhi 猜想
DOI: --
发表时间: 2013
期刊: Journal of Combinatorial Theory
影响因子: --
作者:
Ameera Chowdhury;Ghassan Sarkis;Shahriar Shahriari
通讯作者: Shahriar Shahriari
关于非负和的个数
DOI: --
发表时间: 2013
期刊: J. Comb. Theory B
影响因子: --
作者:
P. Frankl
通讯作者: P. Frankl
关于 Manickam-Miklós-Singhi 猜想的注释
DOI: --
发表时间: 2014
期刊: European journal of combinatorics (Print)
影响因子: --
作者:
Ameera Chowdhury
通讯作者: Ameera Chowdhury