Characterizations of Matrix and Compact Operators on BK Spaces

In the present paper, by estimating operator norms, we give some characterizations of infinite matrix classes $\left( \left\vert E_{\mu }^{r}\right\vert _{q},\Lambda\right) $ and $\left( \left\vert E_{\mu }^{r}\right\vert _{\infty },\Lambda\right) $, where the absolute spaces $\ \left\vert E_{\mu }...

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Main Author: Fadime Gökçe
Format: Article
Language:English
Published: Emrah Evren KARA 2023-07-01
Series:Universal Journal of Mathematics and Applications
Subjects:
Online Access:https://dergipark.org.tr/tr/download/article-file/3082643
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author Fadime Gökçe
author_facet Fadime Gökçe
author_sort Fadime Gökçe
collection DOAJ
description In the present paper, by estimating operator norms, we give some characterizations of infinite matrix classes $\left( \left\vert E_{\mu }^{r}\right\vert _{q},\Lambda\right) $ and $\left( \left\vert E_{\mu }^{r}\right\vert _{\infty },\Lambda\right) $, where the absolute spaces $\ \left\vert E_{\mu }^{r}\right\vert _{q},$ $\left\vert E_{\mu }^{r}\right\vert _{\infty }$ have been recently studied by G\"{o}k\c{c}e and Sar{\i }g\"{o}l \cite{GS2019c} and $\Lambda$ is one of the well-known spaces $c_{0},c,l_{\infty },l_{q}(q\geq 1)$. Also, we obtain necessary and sufficient conditions for each matrix in these classes to be compact establishing their identities or estimates for the Hausdorff measures of noncompactness.
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spelling doaj.art-e61644ecb0d24494a31e21751b9fe31d2024-01-15T15:12:55ZengEmrah Evren KARAUniversal Journal of Mathematics and Applications2619-96532023-07-0162768510.32323/ujma.12828311225Characterizations of Matrix and Compact Operators on BK SpacesFadime Gökçe0PAMUKKALE ÜNİVERSİTESİIn the present paper, by estimating operator norms, we give some characterizations of infinite matrix classes $\left( \left\vert E_{\mu }^{r}\right\vert _{q},\Lambda\right) $ and $\left( \left\vert E_{\mu }^{r}\right\vert _{\infty },\Lambda\right) $, where the absolute spaces $\ \left\vert E_{\mu }^{r}\right\vert _{q},$ $\left\vert E_{\mu }^{r}\right\vert _{\infty }$ have been recently studied by G\"{o}k\c{c}e and Sar{\i }g\"{o}l \cite{GS2019c} and $\Lambda$ is one of the well-known spaces $c_{0},c,l_{\infty },l_{q}(q\geq 1)$. Also, we obtain necessary and sufficient conditions for each matrix in these classes to be compact establishing their identities or estimates for the Hausdorff measures of noncompactness.https://dergipark.org.tr/tr/download/article-file/3082643absolute summabilityeuler matrixhausdorff measures of noncompactnessmatrix transformationsoperator normsequence spaces
spellingShingle Fadime Gökçe
Characterizations of Matrix and Compact Operators on BK Spaces
Universal Journal of Mathematics and Applications
absolute summability
euler matrix
hausdorff measures of noncompactness
matrix transformations
operator norm
sequence spaces
title Characterizations of Matrix and Compact Operators on BK Spaces
title_full Characterizations of Matrix and Compact Operators on BK Spaces
title_fullStr Characterizations of Matrix and Compact Operators on BK Spaces
title_full_unstemmed Characterizations of Matrix and Compact Operators on BK Spaces
title_short Characterizations of Matrix and Compact Operators on BK Spaces
title_sort characterizations of matrix and compact operators on bk spaces
topic absolute summability
euler matrix
hausdorff measures of noncompactness
matrix transformations
operator norm
sequence spaces
url https://dergipark.org.tr/tr/download/article-file/3082643
work_keys_str_mv AT fadimegokce characterizationsofmatrixandcompactoperatorsonbkspaces