The angular distribution of zeros of random analytic functions

Authors

  • M.P. Mahola
    Ya. S. Pidstryhach Institute for Applied Problems of Mechanics and Mathematics, NAS Ukraine, L'viv, Ukraine
  • P.V. Filevych
    L'viv National University of Veterinary Medicine and Biotechnology, L'viv, Ukraine

Keywords:

analytic function, random analytic function, distribution of zeros, counting function, integrated counting function, Nevanlinna characteristic.

Abstract

It is proved, that for the majority (in the sense of probability measure) of functions $f$, analytic in the unit disk with unbounded Nevanlinna characteristic $T_f(r)$, and for all $\alpha<\beta\le\alpha+2\pi$ the relation $$ N_f(r,\alpha,\beta,0)\sim\frac{\beta-\alpha}{2\pi}T_f(r),\quad r\to1, $$ holds, where $N_f(r,\alpha,\beta,0)$ is the integrated counting functions of zeros of $f$ in the sector $\{z\in\mathbb C\colon\ 0<|z|\le r,\ \alpha\le\arg_\alpha z<\beta\}$. The analogous proposition is obtained for entire functions under some conditions on their growth.

Published

20.03.2012