Abstract
An operator (Formula presented.) is said to be (Formula presented.) -isometric if there exists a conjugation C such that (Formula presented.) for some positive integer m. In this paper, we study (Formula presented.) -isometric Toeplitz operators (Formula presented.) with rational symbols φ. We characterize (Formula presented.) -isometric Toeplitz operators (Formula presented.) by properties of the rational symbols φ. Moreover, we provide a concrete description of the (Formula presented.) -isometric block Toeplitz operators.
Original language | English |
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Journal | Linear and Multilinear Algebra |
DOIs | |
State | Accepted/In press - 2021 |
Keywords
- -isometric operators
- block Toeplitz operators
- Toeplitz operators