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Products of orthogonal projections |
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| Authors: | Timur Oikhberg |
| Institution: | Department of Mathematics, The University of Texas at Austin, Austin, Texas 78712 |
| Abstract: | We give a characterization of operators on a separable Hilbert space of norm less than one that can be represented as products of orthogonal projections and give an estimate on the number of factors. We also describe the norm closure of the set of all products of orthogonal projections. |
| Keywords: | Hilbert space orthogonal projections |
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