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Invariant manifolds, global attractors, almost automorphic and almost periodic solutions of non-autonomous differential equations
Authors:David Cheban  Bjoern Schmalfuss
Institution:a State University of Moldova, Department of Mathematics and Informatics, A. Mateevich Street 60, MD-2009 Chi?in?u, Moldova
b University of Paderborn, Mathematical Institute, Warburger Straße 100, 33098 Paderborn, Germany
Abstract:The paper is devoted to the study of non-autonomous evolution equations: invariant manifolds, compact global attractors, almost periodic and almost automorphic solutions. We study this problem in the framework of general non-autonomous (cocycle) dynamical systems. First, we prove that under some conditions such systems admit an invariant continuous section (an invariant manifold). Then, we obtain the conditions for the existence of a compact global attractor and characterize its structure. Third, we derive a criterion for the existence of almost periodic and almost automorphic solutions of different classes of non-autonomous differential equations (both ODEs (in finite and infinite spaces) and PDEs).
Keywords:Global attractor  Non-autonomous dynamical system  Almost periodic solutions  Invariant manifolds
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