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Authors: BORISLAV R. DRAGANOV.
DOI: 10.24193/subbmath.2022.3.10
Published Online: 2022-09-20
Published Print: 2022-09-30
pp. 591-598
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We establish a two-term strong converse estimate of the rate of approximation by the iterated Boolean sums of the Bernstein operator. The characterization is stated in terms of appropriate moduli of smoothness or K-functionals.
Mathematics Subject Classification (2010) : 41A10, 41A17, 41A25, 41A27, 41A35, 41A40.
Keywords: Bernstein polynomials, Boolean sums, strong converse inequality, modulus of smoothness, K-functional.
