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Zapiski Nauchnykh Seminarov POMI, 2019, Volume 480, Pages 122–147
(Mi znsl6767)
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This article is cited in 1 scientific paper (total in 1 paper)
Estimates of approximation by Kantorovich type operators in terms of the second modulus of continuity
L. N. Ikhsanov Saint Petersburg State University
Abstract:
Approximation of bounded measurable functions on the segment $[0, 1]$ by Kantorovich type operators $$ B_n=\sum_{j=0}^nC_n^jx^j(1-x)^{n-j}F_{n, j}, $$ where the $F_{n, j}$ are functionals produced by probability measures with sufficiently small supports is considered. The error of approximation is estimated in terms of the second modulus of continuity. The result is sharp.
Key words and phrases:
Bernstein polynomials, second modulus of continuity.
Received: 26.08.2019
Citation:
L. N. Ikhsanov, “Estimates of approximation by Kantorovich type operators in terms of the second modulus of continuity”, Investigations on linear operators and function theory. Part 47, Zap. Nauchn. Sem. POMI, 480, ПОМИ, СПб., 2019, 122–147
Linking options:
https://www.mathnet.ru/eng/znsl6767 https://www.mathnet.ru/eng/znsl/v480/p122
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Abstract page: | 92 | Full-text PDF : | 28 | References: | 21 |
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