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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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Numerical range of a weighted shift with periodic weights
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by William C. Ridge
Proc. Amer. Math. Soc. 55 (1976), 107-110
DOI: https://doi.org/10.1090/S0002-9939-1976-0397473-6
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Abstract:

Calculation of the numerical range of a weighted shift is reduced to the solution of a polynomial equation when the weights form a periodic sequence, or approach a periodic sequence from below.
References
Bibliographic Information
  • © Copyright 1976 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 55 (1976), 107-110
  • DOI: https://doi.org/10.1090/S0002-9939-1976-0397473-6
  • MathSciNet review: 0397473