Evolutionary-type estimates for the products of some powers of the inner radii of multiply connected domains

UDC 517.54 We consider a classical problem of the geometric function theory concerning the maximum product of certain powers of the inner radii of $n$ mutually disjoint domains with respect to $n$ fixed points in the complex plane. For this product, several estimates of evolutionary type are e...

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Date:2026
Main Authors: Zabolotnyi, Ya., Заболотний, Ярослав
Format: Article
Language:Ukrainian
Published: Institute of Mathematics, NAS of Ukraine 2026
Online Access:https://umj.imath.kiev.ua/index.php/umj/article/view/8919
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Journal Title:Ukrains’kyi Matematychnyi Zhurnal
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Ukrains’kyi Matematychnyi Zhurnal
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author Zabolotnyi, Ya.
Заболотний, Ярослав
author_facet Zabolotnyi, Ya.
Заболотний, Ярослав
author_sort Zabolotnyi, Ya.
baseUrl_str https://umj.imath.kiev.ua/index.php/umj/oai
collection OJS
datestamp_date 2026-03-22T13:31:23Z
description UDC 517.54 We consider a classical problem of the geometric function theory concerning the maximum product of certain powers of the inner radii of $n$ mutually disjoint domains with respect to $n$ fixed points in the complex plane. For this product, several estimates of evolutionary type are established.
doi_str_mv 10.3842/umzh.v77i5.8919
first_indexed 2026-03-24T03:43:10Z
format Article
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spelling umjimathkievua-article-89192026-03-22T13:31:23Z Evolutionary-type estimates for the products of some powers of the inner radii of multiply connected domains Оцінки еволюційного типу для добутків деяких степенів внутрішніх радіусів багатозв'язних областей Zabolotnyi, Ya. Заболотний, Ярослав inner radius of domain, non-overlapping domains, Green's function внутрішній радіус області, неперетинні області, функція Гріна UDC 517.54 We consider a classical problem of the geometric function theory concerning the maximum product of certain powers of the inner radii of $n$ mutually disjoint domains with respect to $n$ fixed points in the complex plane. For this product, several estimates of evolutionary type are established. УДК 517.54 Розглянуто відому проблему геометричної теорії функцій про максимум добутку деяких степенів внутрішніх радіусів $n$ довільних взаємно неперетинних областей щодо $n$ фіксованих точок комплексної площини і для згаданого добутку отримано деякі оцінки еволюційного типу. Institute of Mathematics, NAS of Ukraine 2026-03-21 Article Article application/pdf https://umj.imath.kiev.ua/index.php/umj/article/view/8919 10.3842/umzh.v77i5.8919 Ukrains’kyi Matematychnyi Zhurnal; Vol. 77 No. 5 (2025); 314–323 Український математичний журнал; Том 77 № 5 (2025); 314–323 1027-3190 uk https://umj.imath.kiev.ua/index.php/umj/article/view/8919/10531 Copyright (c) 2025 Ярослав Заболотний
spellingShingle Zabolotnyi, Ya.
Заболотний, Ярослав
Evolutionary-type estimates for the products of some powers of the inner radii of multiply connected domains
title Evolutionary-type estimates for the products of some powers of the inner radii of multiply connected domains
title_alt Оцінки еволюційного типу для добутків деяких степенів внутрішніх радіусів багатозв'язних областей
title_full Evolutionary-type estimates for the products of some powers of the inner radii of multiply connected domains
title_fullStr Evolutionary-type estimates for the products of some powers of the inner radii of multiply connected domains
title_full_unstemmed Evolutionary-type estimates for the products of some powers of the inner radii of multiply connected domains
title_short Evolutionary-type estimates for the products of some powers of the inner radii of multiply connected domains
title_sort evolutionary-type estimates for the products of some powers of the inner radii of multiply connected domains
topic_facet inner radius of domain
non-overlapping domains
Green's function
внутрішній радіус області
неперетинні області
функція Гріна
url https://umj.imath.kiev.ua/index.php/umj/article/view/8919
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