On the commutativity of closed symmetric operators

S Dehimi, MH Mortad, A Bachir - Analysis Mathematica, 2023 - Springer
ON THE COMMUTATIVITY OF CLOSED SYMMETRIC OPERATORS Page 1 Analysis Math.,
49 (3) (2023), 721–731 DOI: 10.1007/s10476-023-0226-2 ON THE COMMUTATIVITY OF …

Generalizations of Weiss' version of the Fuglede–Putnam theorem for unbounded operators

MH Mortad - Expositiones Mathematicae, 2024 - Elsevier
The present paper discusses Weiss' version of the Fuglede–Putnam theorem. We establish
three generalizations of this version, each of which involves unbounded normal operators …

Classical Versions and Some Historical Notes

MH Mortad - The Fuglede-Putnam Theory, 2022 - Springer
Classical Versions and Some Historical Notes | SpringerLink Skip to main content
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Generalizations to Unbounded Operators

MH Mortad - The Fuglede-Putnam Theory, 2022 - Springer
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Conjectures

MH Mortad - The Fuglede-Putnam Theory, 2022 - Springer
Conjectures Page 1 Chapter 8 Conjectures In this short chapter, we list a few conjectures that
could stimulate further research. 8.1 Conjectures 1. To the best of my knowledge, there isn’t any …