Spectra of operators with fixed imaginary parts
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- by Andrzej Pokrzywa PDF
- Proc. Amer. Math. Soc. 81 (1981), 359-364 Request permission
Abstract:
The aim of this paper is to obtain the best bound for the distance between the eigenvalues of a Hermitian matrix $B$ and the real parts of eigenvalues of a matrix $B + iA$, where $A$ is also Hermitian, in the terms of eigenvalues of $A$. A similar problem in infinite-dimensional Hilbert space is also considered.References
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Additional Information
- © Copyright 1981 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 81 (1981), 359-364
- MSC: Primary 15A18; Secondary 15A42, 15A60, 47A10
- DOI: https://doi.org/10.1090/S0002-9939-1981-0597640-4
- MathSciNet review: 597640