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

Ewha Womans University

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
Externally published	Yes

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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title = "m-Isometric block Toeplitz operators",

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.",

keywords = "Block Toeplitz operators, Contractive operators, Expansive operators, m-isometric operators",

author = "Eungil Ko and Jongrak Lee",

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doi = "10.1186/s13660-019-2138-z",

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AB - 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.

KW - Block Toeplitz operators

KW - Contractive operators

KW - Expansive operators

KW - m-isometric operators

UR - https://www.scopus.com/pages/publications/85068754311

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DO - 10.1186/s13660-019-2138-z

M3 - Article

AN - SCOPUS:85068754311

SN - 1025-5834

VL - 2019

JO - Journal of Inequalities and Applications

JF - Journal of Inequalities and Applications

IS - 1

M1 - 185

ER -

m-Isometric block Toeplitz operators

Abstract

Keywords

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