Notas sobre la difusión de Arnold

KAM theorem doesn't ensure stability for dynamical systems close to integrable Hamiltonian systems when the dimension of the phase space is more than four . In this case, irregular unstable orbits may occur, arbitrarily close to stable invariant tori . This is the Arnold diffusion . We study he...

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Detalhes bibliográficos
Autor: Delshams, Amadeu
Formato: artículo
Estado:Versión publicada
Fecha de publicación:1980
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/132772
Acesso em linha:https://hdl.handle.net/2445/132772
Access Level:acceso abierto
Palavra-chave:Sistemes hamiltonians
Hamiltonian systems
Descrição
Resumo:KAM theorem doesn't ensure stability for dynamical systems close to integrable Hamiltonian systems when the dimension of the phase space is more than four . In this case, irregular unstable orbits may occur, arbitrarily close to stable invariant tori . This is the Arnold diffusion . We study here some suf£icient conditions which guarantee the existence of this diffusion .