m-Isometric block Toeplitz operators

In this paper, we study m -isometric block Toeplitz operators with trigonometric symbols. In addition, we give a necessary and sufficient condition for block Toeplitz operators with trigonometric polynomial symbols to be m -contractive.

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Bibliographic Details
Published in:Journal of inequalities and applications 2019-07, Vol.2019 (1), p.1-11, Article 185
Main Authors: Ko, Eungil, Lee, Jongrak
Format: Article
Language:English
Subjects:
Analysis
Applications of Mathematics
Block Toeplitz operators
Contractive operators
Expansive operators
m-isometric operators
Mathematics
Mathematics and Statistics
Operators
Polynomials
Symbols
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Description
Summary:In this paper, we study m -isometric block Toeplitz operators with trigonometric symbols. In addition, we give a necessary and sufficient condition for block Toeplitz operators with trigonometric polynomial symbols to be m -contractive.
ISSN:1029-242X
1025-5834
1029-242X
DOI:10.1186/s13660-019-2138-z