English

Zeros of holomorphic functions in the unit disk and $\rho$-trigonometrically convex functions

Complex Variables 2018-11-27 v1

Abstract

Let MM\/ be a subharmonic function with Riesz measure μM\mu_M on the unit disk D\mathbb D in the complex plane C\mathbb C. Let ff be a nonzero holomorphic function on D\mathbb D such that ff vanishes on ZD{\sf Z}\subset \mathbb D, and satisfies fexpM|f| \leq \exp M on D\mathbb D. Then restrictions on the growth of μM\mu_M near the boundary of DD imply certain restrictions on the distribution of Z\sf Z. We give a quantitative study of this phenomenon in terms of special non-radial test functions constructed using ρ\rho-trigonometrically convex functions.

Keywords

Cite

@article{arxiv.1811.10390,
  title  = {Zeros of holomorphic functions in the unit disk and $\rho$-trigonometrically convex functions},
  author = {Bulat N. Khabibullin and Farkhat B. Khabibullin},
  journal= {arXiv preprint arXiv:1811.10390},
  year   = {2018}
}

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11 pages