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Generalized EP elements in Banach *-algebras

  • Huanyin Chen EMAIL logo and Marjan Sheibani
Published/Copyright: December 3, 2025
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Abstract

We introduce a new generalized inverse, termed the generalized EP element, which naturally extends the concepts of EP and *-DMP elements within the framework of Banach *-algebras. We provide polar-like characterizations for these generalized EP elements and investigate conditions ensuring their additive closure. Finally, we characterize the generalized core-EP orders associated with these elements.

MSC 2020: 16U90; 15A09; 46H05

Acknowledgements

We thank the reviewer for their careful reading and insightful comments, which have significantly improved this manuscript.

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Received: 2025-06-19
Revised: 2025-09-11
Accepted: 2025-09-15
Published Online: 2025-12-03

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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