Boundedness of solutions for polynomial potentials withC
2 time dependent coefficients |
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Authors: | Yiqian Wang Jiangong You |
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Institution: | 1. Dept. of Mathematics, Nanjing University, 210093, Nanjing, P.R. China 3. Dept. of Mathematics, Nanjing University, P.R. China
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Abstract: | In this paper we prove the existence of invariant curves and thus stability for all time for a class of Hamiltonian systems with time dependent potentials: $$\frac{{d^2 x}}{{dt^2 }} + Vx(x,t) = 0,x \in R^1 $$ where $\begin{gathered} V(x,t) = \tfrac{1}{{2n + 2}}x^{2n + 2} + \Sigma _{j = 0}^{2n} \tfrac{{Pj(t)}}{{j + 1}}x^{j + 1} ,p_j (t + 1) = p_j (t),p_j \in C^2 ,2n \geqslant j \geqslant n + 1;p_j \in \\ C^1 ,n \geqslant j \geqslant 0,n \geqslant 1. \\ \end{gathered} $ |
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