Statistical approximation properties of high order operators constructed with the Chan–Chyan–Srivastava polynomials

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摘要

In this paper, by including high order derivatives of functions being approximated, we introduce a general family of the linear positive operators constructed by means of the Chan–Chyan–Srivastava multivariable polynomials and study a Korovkin-type approximation result with the help of the concept of A-statistical convergence, where A is any non-negative regular summability matrix. We obtain a statistical approximation result for our operators, which is more applicable than the classical case. Furthermore, we study the A-statistical rates of our approximation via the classical modulus of continuity.

论文关键词:Chan–Chyan–Srivastava multivariable polynomials,A-statistical convergence,A-statistical rates,The Korovkin theorem,Modulus of continuity

论文评审过程:Available online 31 July 2011.

论文官网地址:https://doi.org/10.1016/j.amc.2011.07.004