Type: Article
Publication Date: 2012-10-15
Citations: 114
DOI: https://doi.org/10.2140/apde.2012.5.627
Our main result is that if A is a finite subset of an abelian group with |A+A| < K|A|, then 2A-2A contains an O(log^{O(1)} K)-dimensional coset progression M of size at least exp(-O(log^{O(1)} K))|A|.