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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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 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.
doi_str_mv 10.1186/s13660-019-2138-z
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ispartof Journal of inequalities and applications, 2019-07, Vol.2019 (1), p.1-11, Article 185
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1025-5834
1029-242X
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source Publicly Available Content Database (Proquest) (PQ_SDU_P3); Springer Nature - SpringerLink Journals - Fully Open Access
subjects Analysis
Applications of Mathematics
Block Toeplitz operators
Contractive operators
Expansive operators
m-isometric operators
Mathematics
Mathematics and Statistics
Operators
Polynomials
Symbols
title m-Isometric block Toeplitz operators
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