Browsing Waterloo Research by Author "Omladic, Matjaz"
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A note on the structure of matrix *-subalgebras with scalar diagonals
MacDonald, Gordon; Mastnak, Mitja; Omladic, Matjaz; Radjavi, Heydar (EleMath, 2021)We characterize those unital, self-adjoint algebras of complex n x n matrices that are simultaneously unitarily similar to algebras in which every member has a scalar diagonal.