English

Helson zeta functions for characters with finitely many values

Number Theory 2022-07-19 v1

Abstract

We show that the analytic continuations of Helson zeta functions ζχ(s)=1χ(n)ns \zeta_\chi (s)= \sum_1^{\infty}\chi(n)n^{-s} can have essentially arbitrary poles and zeroes in the strip 21/40<s<1 21/40 < \Re s < 1 (unconditionally), and in the whole critical strip 1/2<s<1 1/2 < \Re s <1 under Riemann Hypothesis for the function χ \chi taking values in cubic roots of unity. If the sets are symmetric with respect to the real axis, the same can be achieved with χ \chi taking values ±1 \pm 1 .

Keywords

Cite

@article{arxiv.2207.08659,
  title  = {Helson zeta functions for characters with finitely many values},
  author = {I. Bochkov},
  journal= {arXiv preprint arXiv:2207.08659},
  year   = {2022}
}

Comments

arXiv admin note: substantial text overlap with arXiv:2106.15949