A Necessary and Sufficient Condition on the Existence and Uniqueness of2\pi-Periodic Solution of Duffing Equation
Citation：
Li Weigu.A Necessary and Sufficient Condition on the Existence and Uniqueness of2\pi-Periodic Solution of Duffing Equation[J].Chinese Annals of Mathematics B,1990,11(3):342~345
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Authors：
Li Weigu;
Abstract：
This paper gives a necessary and sufficient condition on the existence and uniqueness of 2\pi-periodic solution of Duffing equation
$d^2x/dt^2+g(x)=P(t) (=P(t+2\pi)).$
