Positive periodic solutions for first-order neutral functional differential equations with periodic delays. (English) Zbl 1245.34073
Summary: Two classes of first-order neutral functional differential equations with periodic delays are considered. Some results on the existence of positive periodic solutions for the equations are obtained by using Krasnoselskii’s fixed point theorem. Four examples are included to illustrate our results.
MSC:
| 34K13 | Periodic solutions to functional-differential equations |
| 34K40 | Neutral functional-differential equations |
| 47N20 | Applications of operator theory to differential and integral equations |
References:
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