Periodic Boundary Value Problem for Second Order Functional Differential Equations

Author(s):  
X. A. Qian ◽  
Z. C. Wang ◽  
L. T. Li
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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