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Range-kernel orthogonality and elementary operators: the nonsmoothness case - MaRDI portal

Range-kernel orthogonality and elementary operators: the nonsmoothness case (Q781757)

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scientific article; zbMATH DE number 7222453
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Range-kernel orthogonality and elementary operators: the nonsmoothness case
scientific article; zbMATH DE number 7222453

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    Range-kernel orthogonality and elementary operators: the nonsmoothness case (English)
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    18 July 2020
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    Summary: The characterization of the points in \(C_1\left( \operatorname{\mathcal{H}}\right)\), the trace class operators, that are orthogonal to the range of elementary operators has been carried out for certain kinds of elementary operators by many authors in the smooth case. In this note, we study that the characterization is a problem in nonsmoothness case for general elementary operators, and we give a counter example to S. Mecheri and M. Bounkhel results.
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