Additional Information
| Author(s) | Liu Yuji |
|---|
Existence of positive periodic solutions of functional difference equations with sign-changing terms
Yuji Liu
Abstract
carpathian_2010_26_1_077_085_abstractThis paper is concerned with the nonlinear functional difference equation ∆x(n) = −a(n)x(n) + λh(n)f(n, x(n − τ(n))), where h and f may change sign. Sufficient conditions for the existence of at least one positive T −periodic solution are established.
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