Abstract
In this paper we define a family of new nonsymmetric operators of generalized translation and describe their properties. For each of these operators, we introduce a generalized modulus of smoothness, for which the direct and inverse theorems of approximation theory are given.
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Potapov, M.K. Properties of a Family of Operators. Mathematical Notes 69, 373–386 (2001). https://doi.org/10.1023/A:1010287509486
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DOI: https://doi.org/10.1023/A:1010287509486