English

Generations of correlation averages

Number Theory 2014-06-19 v3

Abstract

The present paper is a dissertation on the possible consequences of a conjectural bound for the so-called \thinspace modified Selberg integral of the divisor function d3d_3, i.e. a discrete version of the classical Selberg integral, where d3(n)=abc=n1d_3(n)=\sum_{abc=n}1 is attached to the Cesaro weight 1nx/H1-|n-x|/H in the short interval nxH|n-x|\le H. Mainly, an immediate consequence is a non-trivial bound for the Selberg integral of d3d_3, improving recent results of Ivi\'c based on the standard approach through the moments of the Riemann zeta function on the critical line. We proceed instead with elementary arguments, by first applying the "elementary Dispersion Method" in order to establish a link between "weighted Selberg integrals" \thinspace of any arithmetic function ff and averages of correlations of ff in short intervals. Moreover, we provide a conditional generalization of our results to the analogous problem on the divisor function dkd_k for any k3k\ge 3. Further, some remarkable consequences on the 2k2k-th moments of the Riemann zeta function are discussed. Finally, we also discuss the essential properties that a general function ff should satisfy so that the estimation of its Selberg integrals could be approachable by our method.

Cite

@article{arxiv.1205.1706,
  title  = {Generations of correlation averages},
  author = {Giovanni Coppola and Maurizio Laporta},
  journal= {arXiv preprint arXiv:1205.1706},
  year   = {2014}
}

Comments

The results are now conditional under square-root cancellation for the modified Selberg integral

R2 v1 2026-06-21T21:00:13.957Z