Abstract
In the present chapter we consider the operators of the kind A+B, where A is a P-triangular operator and B is a bounded operator. We investigate the invertibility conditions and bounds for the spectra of such operators. In particular, we consider perturbations of the von Neumann - Schatten operators and operators with von Neumann - Schatten Hermitian components.
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© 2003 Springer-Verlag Berlin Heidelberg
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Gil’, M.I. (2003). 8 Bounded Perturbations of Nonselfadjoint Operators. In: Operator Functions and Localization of Spectra. Lecture Notes in Mathematics, vol 1830. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45225-6_8
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DOI: https://doi.org/10.1007/978-3-540-45225-6_8
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-20246-2
Online ISBN: 978-3-540-45225-6
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