English

Univalent functions with half-integral coefficients

Complex Variables 2012-08-14 v1

Abstract

B. Friedman found in his 1946 paper that the set of analytic univalent functions on the unit disk in the complex plane with integral Taylor coefficients consists of nine functions. In the present paper, we prove that the similar set obtained by replacing "integral" by "half-integral" consists of another twelve functions in addition to the nine. We also observe geometric properties of the twelve functions.

Keywords

Cite

@article{arxiv.1208.2483,
  title  = {Univalent functions with half-integral coefficients},
  author = {Naoki Hiranuma and Toshiyuki Sugawa},
  journal= {arXiv preprint arXiv:1208.2483},
  year   = {2012}
}

Comments

17 pages, 6 figures

R2 v1 2026-06-21T21:49:38.666Z