利用不动点理论，给出了一类半线性微分方程有界的调和伪概周期解存在的充分条件。

Using fixed point theorems, in this paper we give sufficient conditions of the existence of bounded mild pseudo almost periodic solution for some semilinear differential equations.

youdao

本文利用不动点理论，给出了一类非线性延迟积分方程正的概周期型解的存在性条件。

In this paper, we give the conditions of existence of positive almost periodic type solutions for some nonlinear delay integral equations.

youdao

利用锥理论和单调迭代技巧讨论了一类逐点次连续的混合单调算子不动点的存在性问题。

Cone theory and monotone iterative technique are used to discuss the existence for a kind of mixed monotone operators with pointwise sub-continuity.

youdao