Spectrum

Mohammed Hichem Mortad
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Mohammed Hichem Mortad: University of Oran 1

Chapter Chapter 29 in Counterexamples in Operator Theory, 2022, pp 519-537 from Springer

Abstract: Abstract The spectrum of unbounded (closed) operators is defined as its analogue of bounded operators. It seems noteworthy, be that as it may, to tell readers that there exist different definitions of the spectrum in the case of unclosed operators.

Date: 2022
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DOI: 10.1007/978-3-030-97814-3_29

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