Quasinormality and Numerical Ranges of Certain Classes of Dual Toeplitz Operators
Author
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-10-14
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The study of dual Toeplitz operators was elaborated by Stroethoff and Zheng (2002), where various corresponding algebraic and spectral properties were established.
In this paper, we characterize numerical ranges of certain classes of dual Toeplitz operators.
Moreover, we introduce the analog of Halmos' fifth classification problem for quasinormal dual Toeplitz operators.
In particular, we show that there are no quasinormal dual Toeplitz operators with bounded analytic or coanalytic symbols which are not normal.
American Psychological Association (APA)
Guediri, Hocine. 2010. Quasinormality and Numerical Ranges of Certain Classes of Dual Toeplitz Operators. Abstract and Applied Analysis،Vol. 2010, no. 2010, pp.1-14.
https://search.emarefa.net/detail/BIM-471273
Modern Language Association (MLA)
Guediri, Hocine. Quasinormality and Numerical Ranges of Certain Classes of Dual Toeplitz Operators. Abstract and Applied Analysis No. 2010 (2010), pp.1-14.
https://search.emarefa.net/detail/BIM-471273
American Medical Association (AMA)
Guediri, Hocine. Quasinormality and Numerical Ranges of Certain Classes of Dual Toeplitz Operators. Abstract and Applied Analysis. 2010. Vol. 2010, no. 2010, pp.1-14.
https://search.emarefa.net/detail/BIM-471273
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-471273
