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Mathematics of the USSR-Izvestiya, 1988, Volume 30, Issue 1, Pages 1–13
DOI: https://doi.org/10.1070/IM1988v030n01ABEH000989
(Mi im1260)
 

This article is cited in 11 scientific papers (total in 11 papers)

On approximation of functions by harmonic polynomials

V. V. Andrievskii
References:
Abstract: For certain finite continua $\mathfrak M\subset\mathbf R^2$ with simply connected complements $\Omega=C\mathfrak M$, the direct problem of using harmonic polynomials to approximate realvalued functions continuous on $\mathfrak M$, harmonic on its interior, and having a specified majorant for their moduli of continuity is solved. As in the case of approximation of functions continuous on $\mathfrak M$ and analytic in $\mathring{\mathfrak M}$ by analytic polynomials, the estimates obtained depend on the distance from the boundary points of $\mathfrak M$ to the level curves of the function mapping $\Omega$ conformally onto the exterior of the unit disk with the standard normalization at $\infty$.
Bibliography: 25 titles.
Received: 26.12.1984
Bibliographic databases:
UDC: 517.53
MSC: Primary 41A10; Secondary 30D40, 54F20
Language: English
Original paper language: Russian
Citation: V. V. Andrievskii, “On approximation of functions by harmonic polynomials”, Math. USSR-Izv., 30:1 (1988), 1–13
Citation in format AMSBIB
\Bibitem{And87}
\by V.~V.~Andrievskii
\paper On~approximation of functions by harmonic polynomials
\jour Math. USSR-Izv.
\yr 1988
\vol 30
\issue 1
\pages 1--13
\mathnet{http://mi.mathnet.ru//eng/im1260}
\crossref{https://doi.org/10.1070/IM1988v030n01ABEH000989}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=887598}
\zmath{https://zbmath.org/?q=an:0658.30031|0642.30027}
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  • This publication is cited in the following 11 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
     
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