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On the norm of an idempotent Schur multiplier on the Schatten class |
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| Authors: | William D Banks Asma Harcharras |
| Institution: | Department of Mathematics, University of Missouri, Columbia, Missouri 65211 ; Department of Mathematics, University of Missouri, Columbia, Missouri 65211 |
| Abstract: | We show that if the norm of an idempotent Schur multiplier on the Schatten class  lies sufficiently close to  , then it is necessarily equal to  . We also give a simple characterization of those idempotent Schur multipliers on  whose norm is  . |
| Keywords: | Idempotent Schur multiplier Schatten class |
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