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Geometric Singular Perturbation Theory for Systems with Symmetry

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Author(s):
Cardin, Pedro Toniol ; Teixeira, Marco Antonio
Total Authors: 2
Document type: Journal article
Source: Journal of Dynamics and Differential Equations; v. 34, n. 2, p. 13-pg., 2020-06-08.
Abstract

In this paper we focus on a class of symmetric vector fields in the context of singularly perturbed fast-slow dynamical systems. Our main question is to know how symmetry properties of a dynamical system are affected by singular perturbations. In addition, our approach uses tools in geometric singular perturbation theory [8], which address the persistence of normally hyperbolic compact manifolds. We analyse the persistence of such symmetry properties when the singular perturbation parameter e is positive and small enough, and study the existing relations between symmetries of the singularly perturbed system and symmetries of the limiting systems, which are obtained from the limit epsilon -> 0 in the fast and slow time scales. This approach is applied to a number of examples. (AU)

FAPESP's process: 19/00976-4 - Dynamical systems with multiple time scales
Grantee:Pedro Toniol Cardin
Support Opportunities: Regular Research Grants