NECESSARY AND SUFFICIENT CONDITIONS FOR EXISTENCE AND UNIQUENESS OF BOUNDED OR ALMOST-PERIODIC SOLUTIONS FOR DIFFERENTIAL SYSTEMS WITH CONVEX POTENTIAL

被引:0
作者
Cieutat, Philippe [1 ]
机构
[1] Univ Versailles St Quentin En Yvelines, Lab Math Appl, F-78035 Versailles, France
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中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We give necessary and sufficient conditions for the existence and uniqueness of bounded or almost-periodic solutions of the first-order differential system: u' + del Phi(u) = e(t), when del Phi denotes the gradient of a convex function on R-N. We also study the relations of continuity between the forcing term e and the solution u. Then we give similar results for the second-order differential system: u '' = del Phi(u) + e(t).
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页码:361 / 378
页数:18
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