### PERIODIC BOUNDARY VALUE PROBLEMS FOR HIGHER ORDER IMPULSIVE FUNCTIONAL DIFFERENTIAL EQUATIONS

*Yuji LIU*

#### Özet

Abstract: We prove existence results for the solutions of the periodic boundary value problem concerning the n-th order functional differential equation with impulses effects

and the periodic boundary conditions

Our method is based upon the coincidence degree theory of Mawhin and some technical inequalities. Examples are presented to illustrate the main results.

Key words. Periodic boundary value problem; solution; n-th order impulsive functional differential equation;

Mathematics Subject Classifications (2000): 34B10, 34B15

and the periodic boundary conditions

Our method is based upon the coincidence degree theory of Mawhin and some technical inequalities. Examples are presented to illustrate the main results.

Key words. Periodic boundary value problem; solution; n-th order impulsive functional differential equation;

Mathematics Subject Classifications (2000): 34B10, 34B15

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