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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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The product of commuting conical projections is a projection
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by Eduardo H. Zarantonello PDF
Proc. Amer. Math. Soc. 38 (1973), 591-594 Request permission

Abstract:

The statement in the title is proved for two projections on closed convex cones in Hilbert space.
References
  • Eduardo H. Zarantonello, Projections on convex sets in Hilbert space and spectral theory. I. Projections on convex sets, Contributions to nonlinear functional analysis (Proc. Sympos., Math. Res. Center, Univ. Wisconsin, Madison, Wis., 1971) Academic Press, New York, 1971, pp. 237–341. MR 0388177
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Additional Information
  • © Copyright 1973 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 38 (1973), 591-594
  • MSC: Primary 46C05
  • DOI: https://doi.org/10.1090/S0002-9939-1973-0318847-2
  • MathSciNet review: 0318847