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Moser扭转定理在Lagrange稳定性中的应用(英文)
Lagrange Stability Via the Twist Theorem
【摘要】 本文利用Moser扭转定理证明了一类Duffing方程x’’+g(x)=e(t)的Lagrange稳定性,其中e(t)以1为周期,g:R→R具有下列性质:当x≥do时,g(x)是超线性的;当x≤-do时,g(x)是次线性的,其中do是一正常数.
【Abstract】 We prove the Lagrange stability of solutions for a class of Duffing equations x + g(x) = e(t), where e(t) is of period 1, and g : IR → IR possesses the characters: g(x) is superlinear when x ≥ d0, d0 is a positive constant and g(x) is sublinear when x ≤-d0.
【关键词】 拟周期运动;
Duffing方程;
Moser扭转定理;
Lagrange稳定性;
【Key words】 quasiperiodic motion; Duffing equation; Moser’s small twist theorem; Lagrange stability;
【Key words】 quasiperiodic motion; Duffing equation; Moser’s small twist theorem; Lagrange stability;
【基金】 Supported by NSFC(No.60074005)
- 【文献出处】 数学进展 ,Advances In Mathematics , 编辑部邮箱 ,2004年04期
- 【分类号】O175
- 【被引频次】2
- 【下载频次】66