English

Improved bounds of the third Hankel determinant for classes of univalent functions with bounded turning

Complex Variables 2020-10-28 v3

Abstract

In this paper we improve the bounds of the third order Hankel determinant for two classes of univalent functions with bounded turning. The bounds are not sharp, but the sharp ones are conjectured.

Keywords

Cite

@article{arxiv.2004.04960,
  title  = {Improved bounds of the third Hankel determinant for classes of univalent functions with bounded turning},
  author = {Milutin Obradović and Nikola Tuneski and Pawel Zaprawa},
  journal= {arXiv preprint arXiv:2004.04960},
  year   = {2020}
}