We show that for every convex Lagrangian quadratic at infinity there is a real number w(0) such that for every w > w(0) the Lagrangian has a periodic orbit with abbreviated action w.
机构:
Harbin Inst Technol, Harbin, Heilongjiang, Peoples R China
South Univ Sci & Technol, Shenzhen, Guangdong, Peoples R ChinaHarbin Inst Technol, Harbin, Heilongjiang, Peoples R China
Qu, Huadi
Xia, Zhihong
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Northwestern Univ, Dept Math, Evanston, IL 60208 USAHarbin Inst Technol, Harbin, Heilongjiang, Peoples R China