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Pseudo weak-demicompactness for 2 × 2 block operator matrices and some perturbation properties

Published Online: 2026-01-13

Published Print: 2025-12

Authors

Chtourou, Ines

Krichen, Bilel
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Text and Data Mining valid from 2025-12-01

Version of Record valid from 2025-12-01
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Article History

Received: 27 March 2023

Revised: 5 June 2024

First Online: 13 January 2026

Declarations

: Conflict of interest The authors declare no conflict of interest.

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