The growth of Weierstrass canonical products of genus zero with random zeros

Authors

  • Yu.B. Zakharko Lviv National University of Veterinary Medicine and Biotechnologies, 50 Pekarska str., 79010, Lviv, Ukraine
  • P.V. Filevych Vasyl Stefanyk Precarpathian National University, 57 Shevchenka str., 76018, Ivano-Frankivsk, Ukraine
https://doi.org/10.15330/cmp.5.1.50-58

Keywords:

entire function, Weierstrass products, maximum modulus, order, genus, exponent of convergence, integrated counting function
Published online: 2013-06-20

Abstract

Let ζ=(ζn) be a complex sequence of genus zero, τ be its exponent of convergence, N(r) be its integrated counting function, π(z)=(1zζn) be the Weierstrass canonical product, and M(r) be the maximum modulus of this product. Then, as is known, the Wahlund-Valiron inequality
lim supr+N(r)lnM(r)w(τ),w(τ):=sinπτπτ,
holds, and this inequality is sharp. It is proved that for the majority (in the probability sense) of sequences ζ the constant w(τ) can be replaced by the constant w(τ2) in the Wahlund-Valiron inequality.

How to Cite
(1)
Zakharko, Y.; Filevych, P. The Growth of Weierstrass Canonical Products of Genus Zero With Random Zeros. Carpathian Math. Publ. 2013, 5, 50-58.