English

Remarks on generalized Ramanujan sums and even functions

Number Theory 2007-05-23 v1

Abstract

We prove a simple formula for the main value of rr-even functions and give applications of it. Considering the generalized Ramanujan sums cA(n,r)c_A(n,r) involving regular systems AA of divisors we show that it is not possible to develop a Fourier theory with respect to cA(n,r)c_A(n,r), like in the the usual case of classical Ramanujan sums c(n,r)c(n,r).

Keywords

Cite

@article{arxiv.math/0610358,
  title  = {Remarks on generalized Ramanujan sums and even functions},
  author = {László Tóth},
  journal= {arXiv preprint arXiv:math/0610358},
  year   = {2007}
}