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TWIN POSITIVE PERIODIC SOLUTIONS OF FUNCTIONAL DIFFERENTIAL EQUATIONS WITH INFINITE DELAY

TWIN POSITIVE PERIODIC SOLUTIONS OF FUNCTIONAL DIFFERENTIAL EQUATIONS WITH INFINITE DELAY
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摘要 In this paper, the author studies a class of nonlinear functional differential equation. By using a fixed point theorem in cones, sufficient conditions are established for the existence of twin positive periodic solutions. In this paper, the author studies a class of nonlinear functional differential equation. By using a fixed point theorem in cones, sufficient conditions are established for the existence of twin positive periodic solutions.
出处 《Annals of Differential Equations》 2006年第3期356-359,共4页 微分方程年刊(英文版)
基金 Supported by grant 011471 from the NSF of Guangdong.
关键词 functional differential equation positive periodic solutions CONE fixed point theorem functional differential equation, positive periodic solutions, cone, fixed point theorem
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