English

The Hurwitz Zeta Function at the Positive Integers

Number Theory 2026-05-28 v10

Abstract

A formula for the Hurwitz zeta function at the positive integers kk, ζ(k,b)\zeta(k,b), is created by solving the real and the imaginary parts separately and then combining them. A few different formulae for the Hurwitz zeta function are known from the literature, but they are very general and usually hold for (k)>1\Re{(k)}>1. The advantage of formulae that only hold at the positive integers is the fact that they are simpler and easier to work with. An analytic continuation of the generating function of ζ(k,b)\zeta(k,b) is also obtained as k2xk(ζ(k,b)1/bk)\sum_{k\ge 2}x^k(\zeta(k,b)-1/b^k), where the term 1/bk1/b^k was subtracted for convenience.

Keywords

Cite

@article{arxiv.1902.06885,
  title  = {The Hurwitz Zeta Function at the Positive Integers},
  author = {Jose Risomar Sousa},
  journal= {arXiv preprint arXiv:1902.06885},
  year   = {2026}
}

Comments

Improved the writing and set the grammar to academic standards

R2 v1 2026-06-23T07:44:27.090Z