
doi: 10.1155/2014/812867
We apply the Krasnoselskii fixed-point theorem to investigate the existence of multiple positive periodic solutions for a class of impulsive functional differential equations with a parameter; some verifiable sufficient results are established easily. In particular, our results extend and improve some previous results.
QA1-939, Functional-differential equations with impulses, Mathematics, Periodic solutions to functional-differential equations
QA1-939, Functional-differential equations with impulses, Mathematics, Periodic solutions to functional-differential equations
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