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Von Neumann’s inequality for noncommuting contractions |
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| Authors: | SW Drury |
| Institution: | Department of Mathematics and Statistics McGill University, Burnside Hall 805 ouest, rue Sherbrooke Street, West Montréal, Québec, Canada H3A 2K6 |
| Abstract: | Let T1,…,Td be linear contractions on a complex Hilbert space and p a complex polynomial in d variables which is a sum of d single variable polynomials. We show that the operator norm of p(T1,…,Td) is bounded by |
| Keywords: | 47L30 15A45 |
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