Statistical approximation properties of Kantorovich type \(q\)-MKZ operators (Q2918699)

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scientific article; zbMATH DE number 6092535
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Statistical approximation properties of Kantorovich type \(q\)-MKZ operators
scientific article; zbMATH DE number 6092535

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    10 October 2012
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    Meyer-König and Zeller operators
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    Korovkin theorem
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    statistical convergence
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    \(q\)-integers
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    Kantorovich type operators
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    modulus of continuity
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    Statistical approximation properties of Kantorovich type \(q\)-MKZ operators (English)
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    The classical MKZ operators (see [\textit{W. Meyer-König} and \textit{K. Zeller}, Stud. Math. 19, 89--94 (1960; Zbl 0091.14506)]) were first \(q\)-generalized by \textit{T. Trif} [Rev. Anal. Numér. Théor. Approx. 29, No. 2, 221--229 (2000; Zbl 1023.41022)] and next by the second author and \textit{O. Duman} [Publ. Math. 68, No. 1--2, 199--214 (2006; Zbl 1097.41004)].NEWLINENEWLINE Using the technique from the first author [``Approximation by Kantorovich type \(q\)-Bernstein operators'', in: Proceedings of the 12th WSEAS Inter. Conf. on App. Math., Egypt, Cairo: WSEAS Press, 113--117 (2007); the authors, Math. Comput. Modelling 52, No. 5--6, 760--771 (2010; Zbl 1202.41017); \textit{C. Radu} [Creat. Math. Inform. 17, No. 2, 75--84 (2008; Zbl 1199.41138)] the statistical approximation properties of Kantorovich type \(q\)-MKZ operators are studied.NEWLINENEWLINE In Section 2, the authors present the construction of Kantorovich \(q\)-MKZ operators. Section 3 contains the statistical convergence properties of the mentioned operators. The main result of this section is Theorem 3.1, which is a statistical convergence theorem for the sequence of functions defined by the Kantorovich \(q\)-MKZ operators. In the proof, a statistical variant of the Bohman-Korovkin theorem is used.NEWLINENEWLINEIn Section 4, the rate of statistical convergence is used.
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