On the compactness and the essential norm of operators defined by infinite tridiagonal matrices

In this article, all sequences u{\boldsymbol{u}}, v{\boldsymbol{v}}, and w{\boldsymbol{w}} that define continuous and compact tridiagonal operators Tu,v,w{T}_{u,v,w} acting on the weighted sequence space lβ2{l}_{\beta }^{2} were characterized. Additionally, the essential norm of this operator, and a...

Full description

Bibliographic Details
Main Authors: Caicedo Alexander, Ramos-Fernández Julio C., Salas-Brown Margot
Format: Article
Language:English
Published: De Gruyter 2023-05-01
Series:Concrete Operators
Subjects:
Online Access:https://doi.org/10.1515/conop-2022-0143