On approximation properties of Balázs-Szabados operators their Kantorovich extension

Abstract


In this paper we deal with a sequence of positive linear operators \(\ R_{n}^{\left[ \beta \right] }\) approximating functions on the unbounded interval \([0,1)\) which were firstly used by K. Balazs and J. Szabados. We give pointwise estimates in the framework of polynomial weighted function spaces. Also we establish a Voronovskaja type theoremin the same weighted spaces for \(K_{n}^{ \left[ \beta \right] }\) operators, representing the integral generalization in Kantorovich sense of the \(R_{n}^{\left[ \beta \right] }\).

Authors

Octavian Agratini
Department of Mathematics, Babes-Bolyai University, Cluj-Napoca, Romania

Keywords

weighted space; linear and positive operator; Kantorovich-type operator; Voronovskaja-type theorem.

Paper coordinates

O. Agratini, On approximation properties of Balázs-Szabados operators their Kantorovich extension, Korean Journal of Computational & Applied Mathematics, 9 (2002), 361-372

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Journal

Korean Journal of Computational & Applied Mathematics

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DOI
Print ISSN

1229-9502

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