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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Lipschitz continuity of oblique projections
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by Harald K. Wimmer PDF
Proc. Amer. Math. Soc. 128 (2000), 873-876 Request permission

Abstract:

Let $W$ and $L$ be complementary spaces of a finite dimensional unitary space $V$ and let $P(W,L)$ denote the projection of $V$ on $W$ parallel to $L$. Estimates for the norm of $P(W,L) - P(W,M)$ are derived which involve the norm of the restriction of $P(W,L)$ to $M$ or the gap between $L$ and $M$.
References
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Additional Information
  • Harald K. Wimmer
  • Affiliation: Mathematisches Institut, Universität Würzburg, D-97074 Würzburg, Germany
  • Email: wimmer@mathematik.uni-wuerzburg.de
  • Received by editor(s): August 10, 1997
  • Received by editor(s) in revised form: April 28, 1998
  • Published electronically: July 6, 1999
  • Communicated by: David R. Larson
  • © Copyright 1999 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 128 (2000), 873-876
  • MSC (1991): Primary 51M05, 51M16, 15A45
  • DOI: https://doi.org/10.1090/S0002-9939-99-05267-3
  • MathSciNet review: 1654064