Minimal sets and chaos in planar piecewise smooth vector fields

Some aspects concerning chaos and minimal sets in discontinuous dynamical systems are addressed. The orientability dependence of trajectories sliding trough some variety is exploited and new phenomena emerging from this situation are highlighted. In particular, although chaotic flows and nontrivial...

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Main Authors: Tiago Carvalho, Rodrigo Euzébio
Format: Article
Language:English
Published: University of Szeged 2020-05-01
Series:Electronic Journal of Qualitative Theory of Differential Equations
Subjects:
Online Access:http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=7661
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author Tiago Carvalho
Rodrigo Euzébio
author_facet Tiago Carvalho
Rodrigo Euzébio
author_sort Tiago Carvalho
collection DOAJ
description Some aspects concerning chaos and minimal sets in discontinuous dynamical systems are addressed. The orientability dependence of trajectories sliding trough some variety is exploited and new phenomena emerging from this situation are highlighted. In particular, although chaotic flows and nontrivial minimal sets are not allowed for smooth vector fields in the plane, the existence of such objects for some classes of vector fields is verified. A characterization of chaotic flows in terms of orientable minimal sets is also provided. The main feature of the dynamical systems under study is related to the non uniqueness of trajectories in some zero measure region as well as the orientation of orbits reaching such region.
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spelling doaj.art-8c8d3ffec5e94d858ecbdff5b496b8ba2023-05-09T07:53:10ZengUniversity of SzegedElectronic Journal of Qualitative Theory of Differential Equations1417-38752020-05-0120203311510.14232/ejqtde.2020.1.337661Minimal sets and chaos in planar piecewise smooth vector fieldsTiago Carvalho0Rodrigo Euzébio1Universidade de São Paulo, BrazilUniversidade Federal de Goias, Goiânia, BrazilSome aspects concerning chaos and minimal sets in discontinuous dynamical systems are addressed. The orientability dependence of trajectories sliding trough some variety is exploited and new phenomena emerging from this situation are highlighted. In particular, although chaotic flows and nontrivial minimal sets are not allowed for smooth vector fields in the plane, the existence of such objects for some classes of vector fields is verified. A characterization of chaotic flows in terms of orientable minimal sets is also provided. The main feature of the dynamical systems under study is related to the non uniqueness of trajectories in some zero measure region as well as the orientation of orbits reaching such region.http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=7661vector fieldspiecewise smooth vector fieldschaosminimal sets
spellingShingle Tiago Carvalho
Rodrigo Euzébio
Minimal sets and chaos in planar piecewise smooth vector fields
Electronic Journal of Qualitative Theory of Differential Equations
vector fields
piecewise smooth vector fields
chaos
minimal sets
title Minimal sets and chaos in planar piecewise smooth vector fields
title_full Minimal sets and chaos in planar piecewise smooth vector fields
title_fullStr Minimal sets and chaos in planar piecewise smooth vector fields
title_full_unstemmed Minimal sets and chaos in planar piecewise smooth vector fields
title_short Minimal sets and chaos in planar piecewise smooth vector fields
title_sort minimal sets and chaos in planar piecewise smooth vector fields
topic vector fields
piecewise smooth vector fields
chaos
minimal sets
url http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=7661
work_keys_str_mv AT tiagocarvalho minimalsetsandchaosinplanarpiecewisesmoothvectorfields
AT rodrigoeuzebio minimalsetsandchaosinplanarpiecewisesmoothvectorfields