The Existence of Periodic Solutions for a Kind of High-Order Duffing Equations with Sign-Changing Coefficient Ahead of Nonlinear Term
LI Xiaojing;LU Shiping
Journal of System Science and Mathematical Science Chinese Series ›› 2009, Vol. 29 ›› Issue (8) : 1079-1087.
The Existence of Periodic Solutions for a Kind of High-Order Duffing Equations with Sign-Changing Coefficient Ahead of Nonlinear Term
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