Periodic solutions of some second-order
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Tiantian Ma; Zaihong Wang
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Article
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2011
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Elsevier Science
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English
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In this paper, we study the existence of periodic solutions of the Rayleigh equations The nonlinear term g satisfies the following conditions: x โฉฝ 0, and lim inf where a is a non-negative constant, S a = {x โ R + : g(x) > a} with sup S a = +โ and f satisfies the sublinear condition. Using the Ler