Existence of Positive Periodic Solutions for Non-Autonomous Functional Differential Equations
Existence of Positive Periodic Solutions for Non-Autonomous Functional Differential Equations
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发表时间:
2001-09
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通讯作者:
S. Cheng;Guang Zhang
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作者:
S. Cheng;Guang Zhang
We establish the existence of positive periodic solutions for a rstorder dierential equation with periodic delay. For this purpose, we use the xed point theorem proved by Krasnoselskii.