A note on preservation of spectra for two given operators

We study the relationships between the spectra derived from Fredholm theory corresponding to two given bounded linear operators acting on the same space. The main goal of this paper is to obtain sufficient conditions for which the spectra derived from Fredholm theory and other parts of the spectra c...

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Bibliographic Details
Main Authors: Carlos Carpintero, Alexander Gutiérrez, Ennis Rosas, José Sanabria
Format: Article
Language:English
Published: Institute of Mathematics of the Czech Academy of Science 2020-07-01
Series:Mathematica Bohemica
Subjects:
Online Access:http://mb.math.cas.cz/full/145/2/mb145_2_1.pdf