Three time scale singular perturbation problems and nonsmooth dynamical systems
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American Mathematical Society (AMS)
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Abstract
In this paper we study three time scale singular perturbation problems where x = (x, y, z) ∈ Rn × Rm × Rp, ε and δ are two independent small parameters (0 < ε, δ ≪ 1), and f, g, h are Cr functions, where r is big enough for our purposes. We establish conditions for the existence of compact invariant sets (singular points, periodic and homoclinic orbits) when ε, δ > 0. Our main strategy is to consider three time scales which generate three different limit problems. In addition, we prove that double regularization of nonsmooth dynamical systems with self-intersecting switching variety provides a class of three time scale singular perturbation problems.
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English
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Quarterly of Applied Mathematics, v. 72, n. 4, p. 673-687, 2014.
