scholarly journals Existence and uniqueness of positive periodic solutions of functional differential equations

2004 ◽  
Vol 293 (1) ◽  
pp. 28-39 ◽  
Author(s):  
Xi-Lan Liu ◽  
Wan-Tong Li
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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