Some New Notions of Bases for the Range of Operators in Hilbert Spaces

This paper is devoted to introduce a new concept of bases for the range of the operator $K$. Actually, we consider controlled $K$-orthonormal and controlled $K$-Riesz bases which are a generalization of ordinary bases in Hilbert spaces. In the sequel, we give some characterizations of these  sequenc...

Full description

Saved in:
Bibliographic Details
Main Author: Hessam Hosseinnezhad
Format: Article
Language:English
Published: University of Maragheh 2024-07-01
Series:Sahand Communications in Mathematical Analysis
Subjects:
Online Access:https://scma.maragheh.ac.ir/article_712163_3bc35bd78ca25bdad6be1e257ba1046c.pdf
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper is devoted to introduce a new concept of bases for the range of the operator $K$. Actually, we consider controlled $K$-orthonormal and controlled $K$-Riesz bases which are a generalization of ordinary bases in Hilbert spaces. In the sequel, we give some characterizations of these  sequences. Next, we construct some new controlled bases with operator theory tools.  Finally, some dual characterizations are given.
ISSN:2322-5807
2423-3900