English

On the error term in a Parseval type formula in the theory of Ramanujan expansions II

Number Theory 2016-08-05 v1

Abstract

For two arithmetical functions ff and gg with absolutely convergent Ramanujan expansions, Murty and Saha have recently derived asymptotic formulas with error term for the convolution sum nNf(n)g(n+h)\sum_{n \le N} f(n) g(n+h) under some suitable conditions (see http://arxiv.org/abs/1506.01945). In this follow up article we improve these results with a weakened hypothesis which is in some sense minimal.

Keywords

Cite

@article{arxiv.1507.07862,
  title  = {On the error term in a Parseval type formula in the theory of Ramanujan expansions II},
  author = {Giovanni Coppola and M. Ram Murty and Biswajyoti Saha},
  journal= {arXiv preprint arXiv:1507.07862},
  year   = {2016}
}