English

Identifying logarithmic tracts

Complex Variables 2019-02-13 v1 Dynamical Systems

Abstract

We show that a direct tract bounded by a simple curve is a logarithmic tract and further give sufficient conditions for a direct tract to contain logarithmic tracts. As an application of these results, an example of a function with infinitely many direct singularities, but no logarithmic singularity over any finite value, is shown to be in the Eremenko-Lyubich class.

Keywords

Cite

@article{arxiv.1902.04330,
  title  = {Identifying logarithmic tracts},
  author = {James Waterman},
  journal= {arXiv preprint arXiv:1902.04330},
  year   = {2019}
}

Comments

12 pages

R2 v1 2026-06-23T07:38:35.314Z