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The Erdős–Moser Sum-free Set Problem
Published online by Cambridge University Press: 23 September 2019
Abstract
We show that there is an absolute $c>0$ such that if $A$ is a finite set of integers, then there is a set $S\subset A$ of size at least $\log ^{1+c}|A|$ such that the restricted sumset $\{s+s^{\prime }:s,s^{\prime }\in S\text{ and }s\neq s^{\prime }\}$ is disjoint from $A$. (The logarithm here is to base $3$.)
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- © Canadian Mathematical Society 2019