On van der Corput property of shifted primes
Abstract
We prove that the upper bound for the van der Corput property of the set of shifted primes is O((log n)-1+o(1)), giving an answer to a problem considered by Ruzsa and Montgomery for the set of shifted primes p-1. We construct normed non-negative valued cosine polynomials with the spectrum in the set p-1, p<=n, and a small free coefficient a0=O((log n)-1+o(1)). This implies the same bound for the Poincar\'e property of the set p-1, and also bounds for several properties related to uniform distribution of related sets.
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