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114. 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]Bojan Kuzma, 2006, review, book review, critique Keywords: matematika, teorija operatorjev, Wignerjev izrek, operatorska algebra, norma, singularna vrednost Published in RUP: 15.10.2013; Views: 3592; Downloads: 40 Link to full text |
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117. Cui, Jianlian; Hou, Jinchuan: Linear maps preserving idempotence on nest algebras. (English). - [J] Acta Math. Sin., Engl. Ser. 20, No. 5, 807-820 (2004). [ISSN 1439-8516; ISSN 1439-7617]Bojan Kuzma, 2006, review, book review, critique Keywords: matematika, teorija operatorjev, idempotentni operatorji, jordanski izomorfizmi Published in RUP: 15.10.2013; Views: 4252; Downloads: 33 Link to full text |
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119. Noninvertibility preservers on Banach algebrasBojan Kuzma, 2006, short scientific article Abstract: It is proved that a linear surjection ▫$\Phi: \mathcal{A} \to \mathcal{B}$▫, which preserves noninvertibility between semisimple, unital, complex Banach algebras, is automatically injective. Keywords: mathematics, functional analysis, linear preserver, noninvertible element, semisimple Banach algebra, socle Published in RUP: 15.10.2013; Views: 3218; Downloads: 126 Link to full text |
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