| EXISTENCE OF PERIODIC SOLUTIONS TO A KIND OF HIGHER ORDER FUNCTIONAL DIFFERENTIAL EQUATION WITH TWO DEVIATING ARGUMENTS |
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| 基金项目： | Natural Science Foundation of Anhui Province (050460103);;the Key Natural Science Foundation by the Bureau of Education of Anhui Province(KJ2008A05ZC). |
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| 摘 要： | In this paper, by the theory of Fourier series, Bernoulli number theory and continu-ation theorem of coincidence degree theory, we study a kind of higher order functional differential equation with two deviating arguments. Some new results on the existence of periodic solutions are obtained.
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EXISTENCE OF PERIODIC SOLUTIONS TO A KIND OF HIGHER ORDER FUNCTIONAL DIFFERENTIAL EQUATION WITH TWO DEVIATING ARGUMENTS |
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| Authors: | Li Xiaojing Zhang Zhirong Lu Shiping |
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| Institution: | College of Math. and Phy.;Jiangsu Teachers University of Tech.;Changzhou 213015;Jiangsu;Dept. of Math.;Anhui Normal University;Wuhu 241000;Anhui |
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| Abstract: | In this paper, by the theory of Fourier series, Bernoulli number theory and continu-ation theorem of coincidence degree theory, we study a kind of higher order functional differential equation with two deviating arguments. Some new results on the existence of periodic solutions are obtained. |
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| Keywords: | periodic solution higher order functional differential equation coin-cidence degree theory |
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