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SM ISO690:2012 CHEBAN, David. The Structure of Global Attractors for Non-autonomous Perturbations of Gradient-Like Dynamical Systems. In: Journal of Dynamics and Differential Equations, 2020, nr. 3(32), pp. 1113-1138. ISSN 1040-7294. DOI: https://doi.org/10.1007/s10884-019-09776-9 |
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Journal of Dynamics and Differential Equations | ||||||
Numărul 3(32) / 2020 / ISSN 1040-7294 | ||||||
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DOI:https://doi.org/10.1007/s10884-019-09776-9 | ||||||
Pag. 1113-1138 | ||||||
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Rezumat | ||||||
In this paper we give the complete description of the structure of compact global (forward) attractors for non-autonomous perturbations of autonomous gradient-like dynamical systems under the assumption that the original autonomous system has a finite number of hyperbolic stationary solutions. We prove that the perturbed non-autonomous (in particular τ-periodic, quasi-periodic, Bohr almost periodic, almost automorphic, recurrent in the sense of Birkhoff) system has exactly the same number of invariant sections (in particular the perturbed systems has the same number of τ-periodic, quasi-periodic, Bohr almost periodic, almost automorphic, recurrent in the sense of Birkhoff solutions). It is shown the compact global (forward) attractor of non-autonomous perturbed system coincides with the union of unstable manifolds of this finite number of invariant sections. |
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Cuvinte-cheie almost automorphic solutions, Almost periodic, chain-recurrent motions, global attractor, Gradient-like dynamical systems, non-autonomous perturbations |
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