Title of article :
Periodic solutions for some nonautonomous
second-order systems ✩
Author/Authors :
Jian Ma ? and Chun-Lei Tang، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2002
Abstract :
Some existence theorems are obtained for periodic solutions of nonautonomous secondorder
systems by using the least action principle and the minimax methods.
2002 Published by Elsevier Science (USA).
Keywords :
(PS) condition , Periodic Solution , Second-order system , Least action principle , Sobolev’s inequality , Saddle point theorem , Wirtinger’s inequality
Journal title :
Journal of Mathematical Analysis and Applications
Journal title :
Journal of Mathematical Analysis and Applications
