m-Isometric block Toeplitz operators

Eungil Ko; Jongrak Lee

doi:10.1186/s13660-019-2138-z

m-Isometric block Toeplitz operators

Eungil Ko, Jongrak Lee

Department of Mathematics

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

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.

Original language	English
Article number	185
Journal	Journal of Inequalities and Applications
Volume	2019
Issue number	1
DOIs	https://doi.org/10.1186/s13660-019-2138-z
State	Published - 1 Dec 2019

Bibliographical note

Funding Information:
The first author was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1D1A1B03931937). The second author was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (No. 2019R1A6A1A11051177) and the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2018R1D1A1B07048620).

Publisher Copyright:
© 2019, The Author(s).

Keywords

Block Toeplitz operators
Contractive operators
Expansive operators
m-isometric operators

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10.1186/s13660-019-2138-z

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ER -

m-Isometric block Toeplitz operators

Abstract

Bibliographical note

Keywords

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