The distribution of zeros of entire functions of exponential type with restrictions on growth along the imaginary axis

Abstract

Let $g$ be a entire function of exponential type on the complex plane $\mathbb{C}$, $Z=\{z_k{\}}_{k=1,2,\dots }$ be a sequence of points in $\mathbb{C}$. We give a criterion for the existence of an entire function $f\ne 0$ of exponential type that vanishes on $Z$ and satisfies the constraint $\ln |f(iy)|\le \ln |g(iy)|+o(|y|)$, $y\to \pm \infty$. Our results generalize and develop a joint results of P. Malliavin and L. A. Rubel. Applications to multipliers for entire functions of exponential type, to analytic functionals and their convolutions on the complex plane, as well as to the completeness of exponential systems in the spaces of locally analytic functions on compacts in terms of the width of these compacts are given.

10 pages, in Russian