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Bulletin of the American Mathematical Society

ISSN 1088-9485(online) ISSN 0273-0979(print)

 

 

The closure of the numerical range contains the spectrum


Author: Eduardo H. Zarantonello
Journal: Bull. Amer. Math. Soc. 70 (1964), 781-787
MathSciNet review: 0173176
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References | Additional Information

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

  • 1. Marshall Harvey Stone, Linear transformations in Hilbert space, American Mathematical Society Colloquium Publications, vol. 15, American Mathematical Society, Providence, RI, 1990. Reprint of the 1932 original. MR 1451877
  • 2. P. A. Alexandroff, Combinatorial topology, Graylock, Rochester, N. Y., 1956.
  • 3. Felix E. Browder, Remarks on nonlinear functional equations, Proc. Nat. Acad. Sci. U.S.A. 51 (1964), 985–989. MR 0163200


Additional Information

DOI: https://doi.org/10.1090/S0002-9904-1964-11237-4