Extremal quasiconformality vs bounded rational approximation

We show that, on most of the hyperbolic simply connected domains, the weighty bounded rational approximation in a natural sup norm is possible only for a very sparse set of holomorphic functions (in contrast to the integral approximation). The obstructions are caused by the features of extremal quas...

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Збережено в:
Бібліографічні деталі
Опубліковано в: :Український математичний вісник
Дата:2019
Автор: Krushkal, S.L.
Формат: Стаття
Мова:English
Опубліковано: Інститут прикладної математики і механіки НАН України 2019
Онлайн доступ:https://nasplib.isofts.kiev.ua/handle/123456789/169439
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Extremal quasiconformality vs bounded rational approximation / S.L. Krushkal // Український математичний вісник. — 2019. — Т. 16, № 2. — С. 181-199. — Бібліогр.: 26 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
Опис
Резюме:We show that, on most of the hyperbolic simply connected domains, the weighty bounded rational approximation in a natural sup norm is possible only for a very sparse set of holomorphic functions (in contrast to the integral approximation). The obstructions are caused by the features of extremal quasiconformality. The paper is devoted to the 100th anniversary of Georgii Dmitrievich Suvorov, my first university adviser and teacher. He was an outstanding mathematician and a widely talented, extremely great human being.
ISSN:1810-3200