Trigonometric representations of generalized Dedekind and Hardy sums via the discrete Fourier transform

Abstract

We introduce some new higher dimensional generalizations of the Dedekind sums associated with the Bernoulli functions and of those Hardy sums which are defined by the sawtooth function. We generalize a variant of Parseval's formula for the discrete Fourier transform to derive finite trigonometric representations for these sums in a simple unified manner. We also consider a related sum involving the Hurwitz zeta function.

arXiv commentTo Professor Helmut Maier on his 60th birthday. In: Analytic Number Theory - In Honor of Helmut Maier's 60th Birthday, C. Pomerance and M. Th. Rassias (eds.), Springer, New York, 2015, pp. 329--343