Title of article :
Coincidence degree and periodic solutions of Duffing equations Original Research Article
Author/Authors :
Ma Shiwang، نويسنده , , Wang Zhicheng، نويسنده , , Yu Jianshe، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1998
Keywords :
Duffing equation , Brouwer degree , Coincidence degree , Resonance , Delay , Periodic solution
Journal title :
Nonlinear Analysis Theory, Methods & Applications
Journal title :
Nonlinear Analysis Theory, Methods & Applications
