Continuity and essential norm of operators defined by infinite tridiagonal matrices in weighted Orlicz and l∞ spaces

In this article, we provide a comprehensive study on the continuity and essential norm of an operator defined by an infinite tridiagonal matrix, specifically when it operates from a weighted Orlicz sequence space or a weighted l∞{l}^{\infty } space into another space of similar nature. Our findings...

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Bibliographic Details
Main Authors: Ramos-Fernández Julio C., Ramos-Salas Carlos J., Salas-Brown Margot
Format: Article
Language:English
Published: De Gruyter 2025-07-01
Series:Open Mathematics
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Online Access:https://doi.org/10.1515/math-2025-0160
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Summary:In this article, we provide a comprehensive study on the continuity and essential norm of an operator defined by an infinite tridiagonal matrix, specifically when it operates from a weighted Orlicz sequence space or a weighted l∞{l}^{\infty } space into another space of similar nature. Our findings include significant characterizations regarding the compactness of this operator across various contexts of weighted Orlicz and l∞{l}^{\infty } sequence spaces.
ISSN:2391-5455