A note on a characterization of the canonical trace funct. . . In this note we point out that one of those results can be obtained and generalized much further in a very easy way A highly nontrivial generalization of one of our related former results is also presented
More characterizations of the matrix trace - Springer Abstract By employing some powerful techniques, we establish several characterizations of the usual trace on the algebra \ (\mathbb {M}_n\) of complex square matrices