Periodic solutions of a high order equation with deviating arguments.
Lin, Wen-Xian (2004)
Mathematica Pannonica
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Lin, Wen-Xian (2004)
Mathematica Pannonica
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This paper is concerned with periodic solutions of first-order nonlinear functional differential equations with deviating arguments. Some new sufficient conditions for the existence of periodic solutions are obtained. The paper extends and improves some well-known results.