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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 2024 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Spectra of the difference and product of projections
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by Matjaž Omladič
Proc. Amer. Math. Soc. 99 (1987), 317-318
DOI: https://doi.org/10.1090/S0002-9939-1987-0870792-X
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Abstract:

A short natural proof of the known relation between spectra of the difference and the product of two orthogonal projections is given. This proof also generalizes this result.
References
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Bibliographic Information
  • © Copyright 1987 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 99 (1987), 317-318
  • MSC: Primary 47A10; Secondary 47B15
  • DOI: https://doi.org/10.1090/S0002-9939-1987-0870792-X
  • MathSciNet review: 870792