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Matrices Whose Norms Are Determined by Their Actions on Decreasing Sequences

Published online by Cambridge University Press:  20 November 2018

Chang-Pao Chen ,
Hao-Wei Huang  and
Chun-Yen Shen
Chang-Pao Chen
Affiliation:
Department of Applied Mathematics, Hsuan Chuang University, Hsinchu 300, Taiwan, Republic of China e-mail:, [email protected]
Hao-Wei Huang
Affiliation:
Department of Mathematics, Indiana University, Bloomington, IN 47405, U.S.A. e-mail:, [email protected]:, [email protected]
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Abstract

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Let $A={{({{a}_{j,k}})}_{j,k\ge 1}}$ be a non-negative matrix. In this paper, we characterize those $A$ for which ${{\left\| A \right\|}_{E,F}}$ are determined by their actions on decreasing sequences, where $E$ and $F$ are suitable normed Riesz spaces of sequences. In particular, our results can apply to the following spaces: ${{\ell }_{p}}$, $d(w,p)$, and ${{\ell }_{p}}(w)$. The results established here generalize ones given by Bennett; Chen, Luor, and Ou; Jameson; and Jameson and Lashkaripour.

Keywords

15A6040G0547A3047B3746B42norms of matricesnormed Riesz spacesweighted mean matricesNörlund mean matricessummability matricesmatrices with row decreasing
Type
Research Article
Information
Canadian Journal of Mathematics , Volume 60 , Issue 3 , 01 June 2008 , pp. 520 - 531
Copyright
Copyright © Canadian Mathematical Society 2008

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