On the essential spectra of some matrix of linear relations

By T. Álvarez, A. Ammar, Aref Jeribi. 2014

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In this paper, we investigate a detailed treatment of some subsets of essential spectra of a closed multivalued linear operator. On the following, we will establish some results on perturbation theory of 2 × 2 matrix of multivalued linear operators. Copyright © 2013 John Wiley & Sons, Ltd.

Subfields: Applied Mathematics, Computational Theory and Mathematics, Mathematical Physics

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