Yazarlar |
Zeynep Cakir
|
Canay Aykol Kocakuşaklı
Ankara Üniversitesi, Türkiye |
Prof. Dr. Vagıf GULIYEV
Kütahya Dumlupınar Üniversitesi, Türkiye |
Ayhan Şerbetçi
Ankara Üniversitesi, Türkiye |
Özet |
In this paper we investigate the best approximation by trigonometric polynomials in the variable exponent weighted Morrey spaces Mp(⋅),λ(⋅)(I0,w), where w is a weight function in the Muckenhoupt Ap(⋅)(I0) class. We get a characterization of K-functionals in terms of the modulus of smoothness in the spaces Mp(⋅),λ(⋅)(I0,w). Finally, we prove the direct and inverse theorems of approximation by trigonometric polynomials in the spaces Mp(⋅),λ(⋅)(I0,w), the closure of the set of all trigonometric polynomials in Mp(⋅),λ(⋅)(I0,w). |
Anahtar Kelimeler |
Fourier series | L-method of summation | Method of regularization |
Makale Türü | Özgün Makale |
Makale Alt Türü | Uluslararası alan indekslerindeki dergilerde yayımlanan tam makale |
Dergi Adı | Carpathian Mathematical Publications |
Dergi ISSN | ISSN-2075 |
Dergi Tarandığı Indeksler | MathSciNet |
Makale Dili | İngilizce |
Basım Tarihi | 12-2021 |
Cilt No | 13 |
Sayı | 3 |
Sayfalar | 750 / 763 |
Doi Numarası | 10.15330/cmp.13.3.750-763 |
Makale Linki | https://journals.pnu.edu.ua/index.php/cmp/article/view/4798/5994 |