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Linear maps preserving the minimum and reduced minimum moduli |
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| Authors: | A Bourhim M Burgos VS Shulman |
| Institution: | a Département de Mathématiques et de Statistique, Université Laval, Québec (Québec), Canada G1K 7P4 b Departamento de Análisis Matemático, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain c Department of Mathematics, Vologda State Technical University, Vologda, Russia |
| Abstract: | We describe linear maps from a C∗-algebra onto another one preserving different spectral quantities such as the minimum modulus, the surjectivity modulus, and the reduced minimum modulus. |
| Keywords: | _method=retrieve& _eid=1-s2 0-S0022123609004066& _mathId=si2 gif& _pii=S0022123609004066& _issn=00221236& _acct=C000053510& _version=1& _userid=1524097& md5=b9ab4f55cf128364f3c502f48dbdabb8')" style="cursor:pointer C&lowast" target="_blank">" alt="Click to view the MathML source" title="Click to view the MathML source">C&lowast -algebras Linear preserver problems Minimum modulus Surjectivity modulus Reduced minimum modulus |
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