Approximation processes by multidimensional Bernstein-type exponential polynomials on the hypercube

Fuente: arXiv
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Autores principales: Angeloni, Laura, Costarelli, Danilo, Darielli, Chiara
Formato: Preprint
Publicado: 2024
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author Angeloni, Laura
Costarelli, Danilo
Darielli, Chiara
author_facet Angeloni, Laura
Costarelli, Danilo
Darielli, Chiara
contents In this paper we introduce a new family of Bernstein-type exponential polynomials on the hypercube $[0, 1]^d$ and study their approximation properties. Such operators fix a multidimensional version of the exponential function and its square. In particular, we prove uniform convergence, by means of two different approaches, as well as a quantitative estimate of the order of approximation in terms of the modulus of continuity of the approximated function.
format Preprint
id arxiv_https___arxiv_org_abs_2405_16935
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Approximation processes by multidimensional Bernstein-type exponential polynomials on the hypercube
Angeloni, Laura
Costarelli, Danilo
Darielli, Chiara
Classical Analysis and ODEs
Functional Analysis
In this paper we introduce a new family of Bernstein-type exponential polynomials on the hypercube $[0, 1]^d$ and study their approximation properties. Such operators fix a multidimensional version of the exponential function and its square. In particular, we prove uniform convergence, by means of two different approaches, as well as a quantitative estimate of the order of approximation in terms of the modulus of continuity of the approximated function.
title Approximation processes by multidimensional Bernstein-type exponential polynomials on the hypercube
topic Classical Analysis and ODEs
Functional Analysis
url https://arxiv.org/abs/2405.16935