English

Dirichlet type extensions of Euler sums

Number Theory 2022-04-13 v3

Abstract

In this paper, we study the alternating Euler TT-sums and §\S-sums, which are infinite series involving (alternating) odd harmonic numbers, and have similar forms and close relations to the Dirichlet beta functions. By using the method of residue computations, we establish the explicit formulas for the (alternating) linear and quadratic Euler TT-sums and §\S-sums, from which, the parity theorems of Hoffman's double and triple tt-values and Kaneko-Tsumura's double and triple TT-values are further obtained. As supplements, we also show that the linear TT-sums and §\S-sums are expressible in terms of colored multiple zeta values. Some interesting consequences and illustrative examples are presented.

Keywords

Cite

@article{arxiv.2009.11704,
  title  = {Dirichlet type extensions of Euler sums},
  author = {Ce Xu and Weiping Wang},
  journal= {arXiv preprint arXiv:2009.11704},
  year   = {2022}
}
R2 v1 2026-06-23T18:46:07.361Z