The Sharp Threshold for Maximum-Size Sum-Free Subsets in Even-Order Abelian Groups

Author:

BUSHAW NEAL,COLLARES NETO MAURÍCIO,MORRIS ROBERT,SMITH PAUL

Abstract

We study sum-free sets in sparse random subsets of even-order abelian groups. In particular, we determine the sharp threshold for the following property: the largest such set is contained in some maximum-size sum-free subset of the group. This theorem extends recent work of Balogh, Morris and Samotij, who resolved the caseG= ℤ2n, and who obtained a weaker threshold (up to a constant factor) in general.

Publisher

Cambridge University Press (CUP)

Subject

Applied Mathematics,Computational Theory and Mathematics,Statistics and Probability,Theoretical Computer Science

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1. On the stability of the Erdős–Ko–Rado theorem;Journal of Combinatorial Theory, Series A;2016-01

2. On the Method of Typical Bounded Differences;Combinatorics, Probability and Computing;2015-08-27

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