Some non-selfadjoint problems on the circle

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Title:	Some non-selfadjoint problems on the circle
Author:	Lubary Martínez, José Antonio; Solà-Morales Rubió, Joan de
Other authors:	Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada I; Universitat Politècnica de Catalunya. EGSA - Equacions Diferencials, Geometria, Sistemes Dinàmics i de Control, i Aplicacions
Abstract:	The non-selfadjoint nature of some second order differential equations with periodic boundary conditions is exhibited by describing properties of its spectrum, such as geometric and algebraic multiplicities and existence of nonreal eigenvalues.
Subject(s):	-Boundary value problems -non-selfadjoint operators -periodic boundary conditions -nonreal eigenvalues -multiplicities -Problemes de contorn -Valors limits, Problemes de -Classificació AMS::34 Ordinary differential equations::34B Boundary value problems -Classificació AMS::47 Operator theory
Rights:	Attribution-NonCommercial-NoDerivs 2.5 Spain http://creativecommons.org/licenses/by-nc-nd/2.5/es/
Document type:	Article
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