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Contractive projections on Banach space

Published online by Cambridge University Press:  17 April 2009

Mark Spivack
Affiliation:
Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Silver Street, Cambridge CB3 9EW, United Kingdom
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Abstract

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In this note we prove the uniqueness of a projection onto a given subspace with strictly contractive complement. We also show that, if one completely contractive projection is invariant under another, then the two commute.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1986

References

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