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JOURNALS // Problemy Analiza — Issues of Analysis // Archive

Probl. Anal. Issues Anal., 2017 Volume 6(24), Issue 1, Pages 58–67 (Mi pa211)

Extension of starlike functions to a finitely punctured plane

D. V. Prokhorovab

a Petrozavodsk State University, 33, Lenina pr., Petrozavodsk 185910, Russia
b Saratov State University, 83, Astrakhanskaya st., Saratov 410012, Russia

Abstract: We consider a sequence of functions which are starlike in the unit disk and their logarithmic derivatives are meromorphic with a finite number of simple poles in any boundary domain. These poles are either boundary deterministic or random with given characteristics. The aim of the article is the limit process and properties of the limit functions. We distinguish conditions for residues and distribution of poles. Under certain conditions, the sequence converges to the identity function. Another conditions allow us to obtain estimates for the limit function and its logarithmic derivative.

Keywords: starlike function, meromorphic function, weight, deterministic point regulation, uniform distribution.

UDC: 517.5

MSC: 30C45, 60G55

Received: 23.05.2017
Revised: 07.06.2017
Accepted: 10.06.2017

Language: English

DOI: 10.15393/j3.art.2017.3691



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