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This article is cited in 22 scientific papers (total in 22 papers)
Padé–Chebyshev approximants of multivalued analytic functions, variation of equilibrium energy, and the $S$-property of stationary compact sets
A. A. Gonchara, E. A. Rakhmanovba, S. P. Suetina a Steklov Mathematical Institute, Russian Academy of Sciences
b University of South Florida
Abstract:
Padé–Chebyshev approximants are considered for multivalued analytic functions that are real-valued on the unit interval $[-1,1]$. The focus is mainly on non-linear Padé–Chebyshev approximants. For such rational approximations an analogue is found of Stahl's theorem on convergence in capacity of the Padé approximants in the maximal domain of holomorphy of the given function. The rate of convergence is characterized in terms of the stationary compact set for the mixed equilibrium problem of Green-logarithmic potentials.
Bibliography: 79 titles.
Keywords:
rational approximation, Padé approximants, Chebyshev polynomials, non-linear Padé–Chebyshev approximants, stationary compact set, Stahl's theorem, convergence in capacity.
Received: 08.11.2011
Citation:
A. A. Gonchar, E. A. Rakhmanov, S. P. Suetin, “Padé–Chebyshev approximants of multivalued analytic functions, variation of equilibrium energy, and the $S$-property of stationary compact sets”, Russian Math. Surveys, 66:6 (2011), 1015–1048
Linking options:
https://www.mathnet.ru/eng/rm9452https://doi.org/10.1070/RM2011v066n06ABEH004769 https://www.mathnet.ru/eng/rm/v66/i6/p3
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Abstract page: | 1859 | Russian version PDF: | 683 | English version PDF: | 60 | References: | 122 | First page: | 30 |
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