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The product of commuting conical projections is a projection


Author: Eduardo H. Zarantonello
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
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Abstract | References | Similar Articles | Additional Information

Abstract: The statement in the title is proved for two projections on closed convex cones in Hilbert space.


References [Enhancements On Off] (What's this?)

  • [1] E. H. Zarantonello, Projections on convex sets in Hilbert space and spectral theory, Contributions to Nonlinear Functional Analysis, Academic Press, New York, 1971, pp. 237-424. MR 0388177 (52:9014)

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Additional Information

DOI: https://doi.org/10.1090/S0002-9939-1973-0318847-2
Keywords: Hilbert space, convex set, projections
Article copyright: © Copyright 1973 American Mathematical Society

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