Bivariate Bernstein polynomials that reproduce exponential functions

Year 2021, Volume: 70 Issue: 1, 541 - 554, 30.06.2021

Kenan Bozkurt Fırat Özsaraç , Ali Aral

https://doi.org/10.31801/cfsuasmas.793968

Cited By: 11

https://izlik.org/JA94MZ75AB

Abstract

In this paper, we construct Bernstein type operators that reproduce exponential functions on simplex with one moved curved side. The operator interpolates the function at the corner points of the simplex. Used function sequence with parameters α and β not only are gained more modeling flexibility to operator but also satisfied to preserve some exponential functions. We examine the convergence properties of the new approximation processes. Later, we also state its shape preserving properties by considering classical convexity. Finally, a Voronovskaya-type theorem is given and our results are supported by graphics.

Keywords

Bernstein operators , exponential functions , classical and exponential convexity , Voronovskaya-type theorem

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