By using fixed point theorem and constructing almost periodic sequence solution for difference equation, the authors get the sufficient conditions for the existence of the almost periodic solution.

利用不动点方法及对差分方程构造概周期解，获得了概周期解存在的充分条件。

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By using fixed point theorem and constructing almost periodic sequence solution for difference equation, the authors get the sufficient conditions for the existence of the almost periodic solution.

利用不动点方法及对差分方程构造概周期解，获得了概周期解存在的充分条件。

youdao