The Bézier variant of Kantorovich type λ-Bernstein operators

J Inequal Appl. 2018;2018(1):90. doi: 10.1186/s13660-018-1688-9. Epub 2018 Apr 18.

Abstract

In this paper, we introduce the Bézier variant of Kantorovich type λ-Bernstein operators with parameter [Formula: see text]. We establish a global approximation theorem in terms of second order modulus of continuity and a direct approximation theorem by means of the Ditzian-Totik modulus of smoothness. Finally, we combine the Bojanic-Cheng decomposition method with some analysis techniques to derive an asymptotic estimate on the rate of convergence for some absolutely continuous functions.

Keywords: Absolutely continuous functions; Basis functions; Modulus of continuity; Rate of convergence; λ-Bernstein operators.