On location of spectra of unbounded operators in the right half-plane

Michael Gil’

doi:10.1007/s13370-020-00784-3

On location of spectra of unbounded operators in the right half-plane

Michael Gil’

Department of Mathematics

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Let T and T~ be closed linear operators in a Hilbert space. Let the spectrum of T is in the right half-plane. We suggest the conditions, under which the spectrum of T~ also lies in the right half-plane.

Original language	English
Pages (from-to)	1121-1127
Number of pages	7
Journal	Afrika Matematika
Volume	31
Issue number	7-8
DOIs	https://doi.org/10.1007/s13370-020-00784-3
State	Published - 1 Nov 2020

Keywords

Hilbert space
spectrum perturbation
unbounded operators

ASJC Scopus subject areas

Mathematics (all)

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10.1007/s13370-020-00784-3

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title = "On location of spectra of unbounded operators in the right half-plane",

abstract = "Let T and T~ be closed linear operators in a Hilbert space. Let the spectrum of T is in the right half-plane. We suggest the conditions, under which the spectrum of T~ also lies in the right half-plane.",

keywords = "Hilbert space, spectrum perturbation, unbounded operators",

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KW - Hilbert space

KW - spectrum perturbation

KW - unbounded operators

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On location of spectra of unbounded operators in the right half-plane

Abstract

Keywords

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