The paper dealswith a general class of linear positive approximation processes designed using series. For continuous and bounded functions defined on unbounded interval we give rate of convergence in terms of the usual modulus of smoothness. The main goal is to identify functions for which these operators provide uniform approximation over unbounded intervals. Particular cases are delivered.
Department of Mathematics, Babes-Bolyai University, Cluj-Napoca, Romania
Bohman–Korovkin theorem; modulus of smoothness; Szász operator; Baskakov operator; Mastroianni operator; Jain operator; Poisson distribution
O. Agratini, Uniform approximation of some classes of linear positive operators expressed by series, Applicable Analysis, 94 (2015) no. 8, pp. 1662-1669.
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Taylor and Francis
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