The Drazin invertibility of the difference and the sum of two idempotent operators |
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| Authors: | Dragana S Cvetkovi?-Ili? Chun Yuan Deng |
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| Institution: | Department of Mathematics, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia School of Mathematics Science, South China Normal University, Guangzhou 510631, PR China |
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| Abstract: | In this note, some equivalents are established of the Drazin invertibility of differences and sums of idempotent operators on a Hilbert space. |
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| Keywords: | 46C07 46C05 15A09 |
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