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The essential norm of bounded diagonal infinite matrices acting on Banach sequence spaces

open access: yesDemonstratio Mathematica
We calculate the essential norm of bounded diagonal infinite matrices acting on Köthe sequence spaces. As a consequence of our result, we obtain a recent criteria for the compactness of multiplication operator acting on Köthe sequence spaces.
Fernández Julio C. Ramos   +2 more
doaj   +1 more source

Multiplication operators on non-commutative spaces [PDF]

open access: green, 2019
Pierre de Jager, Louis E. Labuschagne
openalex   +1 more source

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

open access: yesOpen Mathematics
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 ...
Ramos-Fernández Julio C.   +2 more
doaj   +1 more source

Multiplication Operators on Cesàro-Orlicz Sequence Spaces

open access: bronze, 2016
Kuldip Raj, Charu Sharma, Suruchi Pandoh
openalex   +1 more source

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