We expose some selected topics concerning the instability of the action variables in a priori unstable Hamiltonian systems, and outline a new strategy that may allow to apply these methods to a priori stable systems.
机构:
Nanjing Univ, Dept Math, Nanjing 210093, Peoples R China
Chinese Acad Sci, Acad Math & Syst Sci, Morningside Ctr Math, Beijing 100190, Peoples R ChinaNanjing Univ, Dept Math, Nanjing 210093, Peoples R China
Chen, Qinbo
Cheng, Chong-Qing
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Nanjing Univ, Dept Math, Nanjing 210093, Peoples R ChinaNanjing Univ, Dept Math, Nanjing 210093, Peoples R China
机构:
Russian Acad Sci, Steklov Math Inst, Moscow, Russia
Moscow MV Lomonosov State Univ, Moscow, RussiaRussian Acad Sci, Steklov Math Inst, Moscow, Russia
机构:
ETSEIB UPC, Dept Matemat Aplicada 1, Barcelona 08028, SpainETSEIB UPC, Dept Matemat Aplicada 1, Barcelona 08028, Spain
Delshams, Amadeu
Gidea, Marian
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Xiamen Univ Technol, Sch Civil Engn & Architecture, Fujian, Peoples R China
Yeshiva Univ, Dept Math Sci, New York, NY 10018 USAETSEIB UPC, Dept Matemat Aplicada 1, Barcelona 08028, Spain