Positive periodic solutions of state-dependent functional differential equations

2005 ◽  
Vol 84 (11) ◽  
pp. 1079-1094 ◽  
Author(s):  
Yuji Liu ◽  
Weigao Ge
2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Zhang Suping ◽  
Jiang Wei

By employing the Krasnoselskii fixed point theorem, we establish some criteria for the existence of positive periodic solutions of a class ofn-dimension periodic functional differential equations with impulses, which improve the results of the literature.


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