Operators and Matrices · Volume 15, Issue 1 A note on the structure of matrix *-subalgebras with scalar diagonals 15-03 Pages 39-45 DOI 10.7153/oam-2021-15-03 Downloads Short PDF Full PDF PNG Authors Gordon MacDonald Mitja Mastnak Matjaž Omladič Heydar Radjavi Keywords unitary similarity scalar diagonals self-adjoint subalgebras of matrices Subject classes 15A04 15A21