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:
影响因子:
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通讯作者:
A. Pokrovskiy
中科院分区:
文献类型:
--
作者:
A. Pokrovskiy
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.
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DOI:
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发表时间:
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2000
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期刊:
Journal of Combinatorial Theory
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DOI:
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期刊:
J. Comb. Theory B
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DOI:
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发表时间:
2014
期刊:
European journal of combinatorics (Print)
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