Existence of positive periodic solutions for a functional difference equation. (Chinese. English summary) Zbl 1224.39025
Summary: By using Krasnosel’skii’s fixed point theorem, some sufficient conditions are obtained for the existence of at least one or at least two positive T-periodic solutions for a functional difference equation.
MSC:
| 39A23 | Periodic solutions of difference equations |
| 39A12 | Discrete version of topics in analysis |
| 34K13 | Periodic solutions to functional-differential equations |
| 39A22 | Growth, boundedness, comparison of solutions to difference equations |
