Title of article :
Existence and multiplicity of periodic solutions for nonautonomous second order systems Original Research Article
Author/Authors :
Chun-Lei Tang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1998
Keywords :
Periodic solution , second order system , subadditive , coercive , Sobolevיs inequality , critical point
Journal title :
Nonlinear Analysis Theory, Methods & Applications
Journal title :
Nonlinear Analysis Theory, Methods & Applications