Levitan/Bohr Almost Periodic and Almost Automorphic Solutions of Second-Order Monotone Differential Equations

The aim of this paper is to prove the existence of Levitan/Bohr almost periodic, almost automorphic, recurrent and Poisson stable solutions of the second order differential equation (1) x′′ = f( (t, y), x, x′), (y 2 Y ) where Y is a complete metric space and (Y, R, ) is a dynamical system (also call...

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Detalhes bibliográficos
Autores: Caraballo Garrido, Tomás, Cheban, David
Formato: artículo
Fecha de publicación:2007
País:España
Recursos:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/23677
Acesso em linha:http://hdl.handle.net/11441/23677
https://doi.org/10.1016/j.jde.2011.04.021
Access Level:acceso abierto
Palavra-chave:Non-autonomous dynamical systems
skew-product systems
cocycles
quasi-periodic
Bohr/Levitan almost periodic
almost automorphic
pseudo-recurrent solutions
monotone second order equation
Descrição
Resumo:The aim of this paper is to prove the existence of Levitan/Bohr almost periodic, almost automorphic, recurrent and Poisson stable solutions of the second order differential equation (1) x′′ = f( (t, y), x, x′), (y 2 Y ) where Y is a complete metric space and (Y, R, ) is a dynamical system (also called a driving system). When the function f in (1) is increasing with respect to its second variable, the existence of at least one quasi periodic (respectively, Bohr almost periodic, almost automorphic, recurrent, pseudo recurrent, Levitan almost periodic, almost recurrent, Poisson stable) solution of (1) is proved under the condition that (1) admits at least one solution ' such that ' and '′ are bounded on the real axis.