难受
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CURL
发表于 2025-3-21 22:21:18
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GROG
发表于 2025-3-22 01:11:15
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哑巴
发表于 2025-3-22 05:27:18
Fundamentals,The aim of this chapter is to introduce the basic concepts, notations, and elementary results which are used throughout the book. Moreover, the results in this chapter may be found in most standard books dealing with operator theory and functional analysis (see ).
的’
发表于 2025-3-22 12:37:24
Perturbation Results,In this chapter, we present preliminary notions and results on which this book is based, namely, the known properties of Fredholm operators in a Banach space, and some results on semi-Fredholm perturbations, Fredholm inverse, and quasi-Fredholm operator on Banach spaces.
天真
发表于 2025-3-22 13:10:58
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Nonporous
发表于 2025-3-22 18:04:22
Pseudo-Spectra,In this chapter, we study the essential pseudo-spectra of densely closed, linear operators in the Banach space.
严重伤害
发表于 2025-3-23 00:18:24
,-Essential Spectra,In this chapter, we give a characterization of .-essential spectra of linear operator . on a Banach space ..
Axon895
发表于 2025-3-23 02:52:01
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Enliven
发表于 2025-3-23 07:35:31
Aref JeribiExamines state-of-the-art research on S-essential spectra and essential pseudo-spectra of closed, closely-defined, and linear operators subjected to additive perturbations.Outlines applications of spe