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Best approximation and best unilateral approximation of the kernel of a biharmonic equation and optimal renewal of the values of operators - MaRDI portal

Best approximation and best unilateral approximation of the kernel of a biharmonic equation and optimal renewal of the values of operators

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Publication:4380902

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DOI10.1007/BF01057925zbMath0887.42019MaRDI QIDQ4380902

Mirgand Shabozovich Shabozov

Publication date: 17 March 1998

Published in: Ukrainian Mathematical Journal (Search for Journal in Brave)

zbMATH Keywords

convolution approximation kernel biharmonic function Besov classes

Mathematics Subject Classification ID

Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35) Trigonometric approximation (42A10) Best approximation, Chebyshev systems (41A50) Harmonic analysis in several variables (42B99)

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Modified Bernstein function and a uniform approximation of some rational fractions by polynomials

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