Article ID Journal Published Year Pages File Type
4640774 Journal of Computational and Applied Mathematics 2010 6 Pages PDF
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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Physical Sciences and Engineering Mathematics Applied Mathematics
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The Drazin invertibility of the difference and the sum of two idempotent operators
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