Type: Article
Publication Date: 2008-01-01
Citations: 20
DOI: https://doi.org/10.4064/aa131-3-5
Suppose that A is a subset of {1,...,N} such that the difference between any two elements of A is never one less than a prime. We show that |A| = O(N exp(-c(log N)^{1/4})) for some absolute c>0.