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A Toeplitz-like Operator with Rational Matrix Symbol Having Poles Only on the Unit Circle: The Adjoint, Symmetry and Fredholm Characteristics

Published Online: 2026-04-09

Published Print: 2026-06

Authors

Groenewald, G. J.

ter Horst, S.

Jaftha, J. J.

Ran, A. C. M. https://orcid.org/0000-0001-9868-8605
Funding

Funding for this research was provided by:

National Research Foundation (127364)

National Research Foundation (145688)

DSI-NRF Centre of Excellence in Mathematical and Statistical Sciences (Not applicable)
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Text and Data Mining valid from 2026-04-09

Version of Record valid from 2026-04-09
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Article History

Received: 17 December 2025

Accepted: 31 March 2026

First Online: 9 April 2026

Declarations

:

: Not applicable.

: The fourth author is a member of the Editorial Board of Integral Equations and Operator Theory.

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