English

Generalization of Bohr-type inequality in analytic functions

Complex Variables 2021-06-22 v1

Abstract

This paper mainly uses the nonnegative continuous function {ζn(r)}n=0\{\zeta_n(r)\}_{n=0}^{\infty} to redefine the Bohr radius for the class of analytic functions satisfying f(z)<1\real f(z)<1 in the unit disk z<1|z|<1 and redefine the Bohr radius of the alternating series Af(r)A_f(r) with analytic functions ff of the form f(z)=n=0apn+mzpn+mf(z)=\sum_{n=0}^{\infty}a_{pn+m}z^{pn+m} in z<1|z|<1. In the latter case, one can also get information about Bohr radius for even and odd analytic functions. Moreover, the relationships between the majorant series Mf(r)M_f(r) and the odd and even bits of f(z)f(z) are also established. We will prove that most of results are sharp.

Keywords

Cite

@article{arxiv.2106.11158,
  title  = {Generalization of Bohr-type inequality in analytic functions},
  author = {Rou-Yuan Lin and Ming-Sheng Liu and Saminathan Ponnusamy},
  journal= {arXiv preprint arXiv:2106.11158},
  year   = {2021}
}

Comments

24 pages

R2 v1 2026-06-24T03:25:47.650Z