Bloch and Landau constants for meromorphic functions
Complex Variables
2026-03-06 v1
Abstract
Let be the class of all meromorphic functions in the unit disk having a simple pole at and satisfying the normalization . Let and denote the Bloch and Landau constants, respectively, for this class. In this article, we first show that the Bloch constant and the Landau constant are infinite. Using these results and a conformal mapping technique, we establish that and are likewise infinite for any , thereby refuting a recent conjecture. Finally, we extend our study to the class of meromorphic functions having two simple poles and prove that their associated Bloch and Landau constants also remain infinite.
Cite
@article{arxiv.2603.05047,
title = {Bloch and Landau constants for meromorphic functions},
author = {Md Firoz Ali and Shaesta Azim},
journal= {arXiv preprint arXiv:2603.05047},
year = {2026}
}