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The existence of periodic solutions for a class of nonlinear functional differential equations |
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| Authors: | Jin-Zhi Liu Zhi-Yuan Jiang Ai-Xiang Wu |
| Affiliation: | (1) College of Information Technology, Shanghai Fisheries University, Shanghai, 200090, P. R. China;(2) School of Mathematics, Guilin University of Electronic Engineering, Guilin, Guangxi, 541004, P. R. China;(3) School of Resources and Safety Engineering, Central South University, Changsha, Hunan, 410083, P. R. China |
| Abstract: | 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. |
| Keywords: | nonlinear functional differential equation differential equation with deviating arguments periodic solutions coincidence degree theory |
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