Local attractor continuation of non-autonomously perturbed systems

Details Local attractor continuation of non-autonomously perturbed systems Local attractor continuation of non-autonomously perturbed systems

2011-03-17

arxiv.org/abs/1103.3458v1

Mathematics

Dynamical Systems

15 pages

Scientific paper

Using Conley theory we show that local attractors remain (past) attractors under small non-autonomous perturbations. In particular, the attractors of the perturbed systems will have positive invariant neighborhoods and converge upper semicontinuously to the original attractor. The result is split into a finite-dimensional part (locally compact) and an infinite-dimensional part (not necessarily locally compact). The finite-dimensional part will be applicable to bounded random noise, i.e. continuous time random dynamical systems on a locally compact metric space which are uniformly close the unperturbed deterministic system. The "closeness" will be defined via a (simpler version of) convergence coming from singular perturbations theory.

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