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。
Based on the need of solving practical problems, Professor C. Zhang proposed pseudo almost periodic function and pseudo almost periodic function sequence.
基于解决实际问题的需要，张传义教授提出了伪概周期函数和伪概周期序列。
Based on the odd-perfect almost binary sequences, the new odd-periodic correlation complementary sequence set is obtained.
基于一类完备周期奇相关函数的几乎二元序列，得到了一类新型奇相关互补序列集。
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