English

The evaluation of Tornheim double sums. Part 1

Classical Analysis and ODEs 2008-11-05 v1 Number Theory

Abstract

We provide an explicit formula for the Tornheim double series in terms of integrals involving the Hurwitz zeta function. We also study the limit when the parameters of the Tornheim sum become natural numbers, and show that in that case it can be expressed in terms of definite integrals of triple products of Bernoulli polynomials and the Bernoulli function Ak(q):=kζ(1k,q)A_k (q): = k\zeta '(1 - k,q).

Keywords

Cite

@article{arxiv.math/0505647,
  title  = {The evaluation of Tornheim double sums. Part 1},
  author = {Olivier Espinosa and Victor H. Moll},
  journal= {arXiv preprint arXiv:math/0505647},
  year   = {2008}
}

Comments

23 pages, AMS-LaTex, to appear in Journal of Number Theory

R2 v1 2026-07-22T17:20:03.651Z