Piecewise Monotone Approximation of Unbounded Functions In Weighted Space LP,w([-,])

In this paper, investigate the approximation of unbounded functions in weighted space, by using trigonometric polynomials considered. We introduced type of polynomials piecewise monotone  having same local monotonicity as unbounded functions without affecting the order of huge error have a finite nu...

Full description

Bibliographic Details
Main Authors: Alaa Adnan, Sultan Mehiady
Format: Article
Language:English
Published: University of Anbar 2022-07-01
Series:مجلة جامعة الانبار للعلوم الصرفة
Subjects:
Online Access:https://juaps.uoanbar.edu.iq/article_174841_0b8e94e6e70086d374c9b681cb65fa19.pdf
Description
Summary:In this paper, investigate the approximation of unbounded functions in weighted space, by using trigonometric polynomials considered. We introduced type of polynomials piecewise monotone  having same local monotonicity as unbounded functions without affecting the order of huge error have a finite number of max. and min. unbounded functions that amount. In addition, we established not included any of extreme points of this functions,  of and closed subset γ on closed intervals  then there exist class of polynomials such that the best of approximation has high or order of and such that for  sufficiently great of the polynomials and functions have the same monotonicity at each of γ.
ISSN:1991-8941
2706-6703