Abstract
By means of the continuation theorem of coincidence degree theory, some new results on the non–existence, existence and unique existence of periodic solutions for a kind of second order neutral functional differential equation are obtained.
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The project is supported by the National Natural Science Foundation 19871005
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Lu, S.P., Ge, W.G. On the Existence of Periodic Solutions for a Kind of Second Order Neutral Functional Differential Equation. Acta Math Sinica 21, 381–392 (2005). https://doi.org/10.1007/s10114-004-0417-0
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DOI: https://doi.org/10.1007/s10114-004-0417-0