Gradient Infinite-Dimensional Random Dynamical Systems

In this paper we introduce the concept of a gradient random dynamical system as a random semiflow possessing a continuous random Lyapunov function which describes the asymptotic regime of the system. Thus, we are able to analyze the dynamical properties on a random attractor described by its Morse d...

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Detalles Bibliográficos
Autores: Caraballo Garrido, Tomás, Langa Rosado, José Antonio, Liu, Zenxhin
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/23674
Acceso en línea:http://hdl.handle.net/11441/23674
https://doi.org/10.1137/120862752
Access Level:acceso abierto
Palabra clave:Morse decomposition
attractor
repeller
Morse set
Lyapunov function
random dynamical systems
Descripción
Sumario:In this paper we introduce the concept of a gradient random dynamical system as a random semiflow possessing a continuous random Lyapunov function which describes the asymptotic regime of the system. Thus, we are able to analyze the dynamical properties on a random attractor described by its Morse decomposition for infinite-dimensional random dynamical systems. In particular, if a random attractor is characterized by a family of invariant random compact sets, we show the equivalence among the asymptotic stability of this family, the Morse decomposition of the random attractor, and the existence of a random Lyapunov function.