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Mathematics of the USSR-Izvestiya, 1988, Volume 30, Issue 2, Pages 385–393
DOI: https://doi.org/10.1070/IM1988v030n02ABEH001019
(Mi im1301)
 

This article is cited in 1 scientific paper (total in 1 paper)

On the possibility of division and involution to a fractional power in the algebra of rational functions

P. V. Paramonov
References:
Abstract: Suppose that a function $f(z)$ satisfies a Lipschitz condition with an arbitrary positive element on a compact set $X$ in $\mathbf C$ and can be uniformly approximated on $X$ by rational functions. If $q>1$ and some branch of $(f(z))^q$ is continuous on $X$, then this branch can also be approximated on $X$ by rational functions. Also, an example is given of a compact set $X$ and two functions $f(z)$ and $g(z)$ uniformly approximable on $X$ by rational functions and with ratio $g(z)/f(z)$ naturally (uniquely) defined and continuous on $X$ but not approximable by rational functions.
Bibliography: 7 titles.
Received: 20.02.1985
Bibliographic databases:
UDC: 517.5
MSC: Primary 41A20, 46J10; Secondary 30C15, 41A46
Language: English
Original paper language: Russian
Citation: P. V. Paramonov, “On the possibility of division and involution to a fractional power in the algebra of rational functions”, Math. USSR-Izv., 30:2 (1988), 385–393
Citation in format AMSBIB
\Bibitem{Par87}
\by P.~V.~Paramonov
\paper On~the possibility of division and involution to a~fractional power in the algebra of rational functions
\jour Math. USSR-Izv.
\yr 1988
\vol 30
\issue 2
\pages 385--393
\mathnet{http://mi.mathnet.ru//eng/im1301}
\crossref{https://doi.org/10.1070/IM1988v030n02ABEH001019}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=897005}
\zmath{https://zbmath.org/?q=an:0643.30036}
Linking options:
  • https://www.mathnet.ru/eng/im1301
  • https://doi.org/10.1070/IM1988v030n02ABEH001019
  • https://www.mathnet.ru/eng/im/v51/i2/p412
  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Известия Академии наук СССР. Серия математическая Izvestiya: Mathematics
    Statistics & downloads:
    Abstract page:1990
    Russian version PDF:170
    English version PDF:35
    References:70
    First page:2
     
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