Periodic boundary value problem for the second order impulsive functional differential equations

2004 ◽  
Vol 155 (3) ◽  
pp. 709-726 ◽  
Author(s):  
Wei Ding ◽  
Maoan Han
2017 ◽  
Vol 24 (1) ◽  
pp. 29-39 ◽  
Author(s):  
Eugene I. Bravyi

AbstractThe periodic boundary value problem for linear second order functional differential equations is considered. Sharp sufficient conditions for the positiveness of solutions are obtained.


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