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

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。

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This paper deals with the problems on the existence and uniqueness of bounded solutions and almost periodic solution for third order nonlinear differential equations with time lag.

研究具时滞的三阶非线性微分方程，利用变量替换和不动点方法，得到了此方程有界解和概周期解的存在性及唯一性结果。

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By the first integral method, the existence, uniqueness and nonexistence of solutions for some nonlinear ordinary differential equations with singular boundary condition are discussed.

用首次积分法，讨论了带奇异边界条件的非线性常微分方程解的存在性、不存在性和唯一性。

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