Kantorovich-Bernstein <em>α</em>-fractal function in ????<em><sup>P</sup></em> spaces

Article

Kantorovich-Bernstein α-fractal function in ????P spaces

Published in: Quaestiones Mathematicae
Volume 43 , issue 2 , 2020 , pages: 227–241
DOI: 10.2989/16073606.2019.1572664
Author(s): A.K.B. Chand Department of Mathematics, India , Sangita Jha Department of Mathematics, India , M.A. Navascués Departamento de Matemática Aplicada, Escuela de Ingeniería y Arquitectura, Spain

Abstract

Fractal interpolation functions are fixed points of contraction maps on suitable function spaces. In this paper, we introduce the Kantorovich-Bernstein α-fractal operator in the Lebesgue space ????p(I), 1 ≤ p ≤ ∞. The main aim of this article is to study the convergence of the sequence of Kantorovich-Bernstein fractal functions towards the original functions in ????p(I) spaces and Lipschitz spaces without affecting the non-linearity of the fractal functions. In the first part of this paper, we introduce a new family of self-referential fractal ????p(I) functions from a given function in the same space. The existence of a Schauder basis consisting of self-referential functions in ????p spaces is proven. Further, we derive the fractal analogues of some ????p(I) approximation results, for example, the fractal version of the classical Müntz-Jackson theorem. The one-sided approximation by the Bernstein α-fractal function is developed.

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