NEGATIVE THEOREM FOR LP,0<P<1 MONOTONE APPROXIMATION

For a given nonnegative integer number n, we can find a monotone function f depending on n, defined on the interval I=[-1,1], and an absolute constant c>0, satisfying the following relationship: (2〖E_n (f Ì )〗_p)/(n+1)^3 ≤〖E_(n+1)^1 (f)〗_p≤c〖E_n (f Ì )〗_p, where 〖E_(n+1)^1 (f...

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Main Author: GHAZI ABDULLAH Madlol
Format: Article
Language:English
Published: Faculty of Computer Science and Mathematics, University of Kufa 2017-12-01
Series:Journal of Kufa for Mathematics and Computer
Subjects:
Online Access:https://journal.uokufa.edu.iq/index.php/jkmc/article/view/2102
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author GHAZI ABDULLAH Madlol
author_facet GHAZI ABDULLAH Madlol
author_sort GHAZI ABDULLAH Madlol
collection DOAJ
description For a given nonnegative integer number n, we can find a monotone function f depending on n, defined on the interval I=[-1,1], and an absolute constant c>0, satisfying the following relationship: (2〖E_n (f Ì )〗_p)/(n+1)^3 ≤〖E_(n+1)^1 (f)〗_p≤c〖E_n (f Ì )〗_p, where 〖E_(n+1)^1 (f)〗_p is the degree of the best Lp monotone approximation of the function f by algebraic polynomial of degree not exceeding n+1. 〖E_n (f Ì )〗_p is the degree of the best Lp approximation of the function f Ì by algebraic polynomial of degree not exceeding n.
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spelling doaj.art-cab02ac2e03548eb89a3dc6b233275382024-03-10T10:27:42ZengFaculty of Computer Science and Mathematics, University of KufaJournal of Kufa for Mathematics and Computer2076-11712518-00102017-12-014310.31642/JoKMC/2018/040301NEGATIVE THEOREM FOR LP,0<P<1 MONOTONE APPROXIMATIONGHAZI ABDULLAH Madlol0UNIVERSITY OF BABYLONFor a given nonnegative integer number n, we can find a monotone function f depending on n, defined on the interval I=[-1,1], and an absolute constant c>0, satisfying the following relationship: (2〖E_n (f Ì )〗_p)/(n+1)^3 ≤〖E_(n+1)^1 (f)〗_p≤c〖E_n (f Ì )〗_p, where 〖E_(n+1)^1 (f)〗_p is the degree of the best Lp monotone approximation of the function f by algebraic polynomial of degree not exceeding n+1. 〖E_n (f Ì )〗_p is the degree of the best Lp approximation of the function f Ì by algebraic polynomial of degree not exceeding n.https://journal.uokufa.edu.iq/index.php/jkmc/article/view/2102Monotone approximation algebraic polynomial best approximation.
spellingShingle GHAZI ABDULLAH Madlol
NEGATIVE THEOREM FOR LP,0<P<1 MONOTONE APPROXIMATION
Journal of Kufa for Mathematics and Computer
Monotone approximation
algebraic polynomial
best approximation.
title NEGATIVE THEOREM FOR LP,0<P<1 MONOTONE APPROXIMATION
title_full NEGATIVE THEOREM FOR LP,0<P<1 MONOTONE APPROXIMATION
title_fullStr NEGATIVE THEOREM FOR LP,0<P<1 MONOTONE APPROXIMATION
title_full_unstemmed NEGATIVE THEOREM FOR LP,0<P<1 MONOTONE APPROXIMATION
title_short NEGATIVE THEOREM FOR LP,0<P<1 MONOTONE APPROXIMATION
title_sort negative theorem for lp 0 p 1 monotone approximation
topic Monotone approximation
algebraic polynomial
best approximation.
url https://journal.uokufa.edu.iq/index.php/jkmc/article/view/2102
work_keys_str_mv AT ghaziabdullahmadlol negativetheoremforlp0p1monotoneapproximation