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

众所周知，分数次积分算子是调和分析中以偏微分方程为背景的一种重要算子。

It is well-known that fractional integral operator is one of the important operators in harmonic analysis with background of partial differential equations.

youdao

调和方程的解与微分形式之间有着密切的联系。

The solution of A-harmonic equation and the differential forms have many affinities.

youdao