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On solvability of periodic boundary value problems for second order linear functional differential equations. (English) Zbl 1363.34211

Summary: The periodic boundary value problem for second order linear functional differential equations with pointwise restrictions (instead of integral ones) is considered. Sharp sufficient conditions for the solvability are obtained.

MSC:

34K10 Boundary value problems for functional-differential equations
34K06 Linear functional-differential equations
34K13 Periodic solutions to functional-differential equations
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