Title of article :
Multiplicity of Periodic Solutions of Semilinear
Duffing’s Equation at Resonance
Author/Authors :
Zaihong Wang، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 1999
Abstract :
In this paper, we prove an infinity of periodic solutions to the periodically forced
nonlinear Duffing equation under new conditions.
Keywords :
Periodic Solution , Poincar´e]Birkhoff twist theorem.
Journal title :
Journal of Mathematical Analysis and Applications
Journal title :
Journal of Mathematical Analysis and Applications