Regular behavior of subharmonic in space functions of the zero kind

Authors

  • M.V. Zabolotskyi Ivan Franko Lviv National University, 1 Universytetska str., 79000, Lviv, Ukraine https://orcid.org/0000-0001-6102-707X
  • T.M. Zabolotskyi Ivan Franko Lviv National University, 1 Universytetska str., 79000, Lviv, Ukraine https://orcid.org/0000-0003-0524-0428
  • S.I. Tarasyuk Ivan Franko Lviv National University, 1 Universytetska str., 79000, Lviv, Ukraine
  • Yu.M. Hal Drohobych Ivan Franko State Pedagogical University, 24 Franko Str., 82100, Drohobych, Ukraine
https://doi.org/10.15330/cmp.16.1.84-92

Keywords:

regular growth, subharmonic function, Riesz measure, proximate order
Published online: 2024-05-12

Abstract

Let u be a subharmonic in Rm, m3, function of the zero kind with Riesz measure μ on negative axis Ox1, n(r,u)=μ({xRm:|x|r}), N(r,u)=(m2)r1n(t,u)/tm1dt, ρ(r) is a proximate order, ρ(r)ρ as r+, 0<ρ<1. We found the asymptotic of u(x) as |x|+ by the condition N(r,u)=(1+o(1))rρ(r), r+. We also investigated the inverse relationship between a regular growth of u and a behavior of N(r,u) as r+.

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How to Cite
(1)
Zabolotskyi, M.; Zabolotskyi, T.; Tarasyuk, S.; Hal, Y. Regular Behavior of Subharmonic in Space Functions of the Zero Kind. Carpathian Math. Publ. 2024, 16, 84-92.