Li, Jinxiu: Applications of Wigner's theorem to positive maps preserving norm of operator products. (English). - [J] J. Math. Study 37, No. 1, 11-16 (2004). [ISSN 1006-6837]Kuzma, Bojan (Avtor) matematikateorija operatorjevWignerjev izrekoperatorska algebranormasingularna vrednost20062013-10-15 12:09:42Delo ni kategorizirano4121sl