Abstract

The aim of the paper is to obtain generalized convergence results for nonlinear multidimensional integrals of the form: L_{η}(ω;x)=((ηⁿ)/(Ω_{n-1}))∫_{D}K(η|t-x|,ω(t))dt. We will prove pointwise convergence of the family L_{η}(ω;x) as η→∞ at a fixed point x∈D which represents any generalized Lebesgue point of function ω∈L₁(D), where D is an open bounded subset of Rⁿ. Moreover, we will consider the case D=Rⁿ. The aim of the paper is to obtain generalized convergence results for nonlinear multidimensional integrals of the form: L_{η}(ω;x)=((ηⁿ)/(Ω_{n-1}))∫_{D}K(η|t-x|,ω(t))dt. We will prove pointwise convergence of the family L_{η}(ω;x) as η→∞ at a fixed point x∈D which represents any generalized Lebesgue point of function ω∈L₁(D), where D is an open bounded subset of Rⁿ. Moreover, we will consider the case D=Rⁿ.

Highlights

  • The studies so far showed that Musielak [14] was the ...rst researcher who investigated the approximation characteristics of convolution type nonlinear integral operators of the form: Zb

  • His research was an intriguing contribution to literature related to this kind of nonlinear integral operators

  • Swiderski and Wachnicki [19] studied the pointwise convergence of the operators of type (1.1). Extensive knowledge concerning this theory can be found in the monograph by Bardaro et al [7]

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Summary

Introduction

The studies so far showed that Musielak [14] was the ...rst researcher who investigated the approximation characteristics of convolution type nonlinear integral operators of the form: Zb. Swiderski and Wachnicki [19] studied the pointwise convergence of the operators of type (1.1). Extensive knowledge concerning this theory can be found in the monograph by Bardaro et al [7]. Multidimensional counterparts of the operators of type (1.1) were studied by Angeloni and Vinti [6] in some function spaces. A real number is considered as a positive parameter They obtained pointwise convergence result for Lebesgue points of integrable functions. We consider the kernel function of the operators of type (1.2). De...nition of d point analogue of this point in onedimensional case was considered by Gadjiev [12]

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