几种特殊复合型积分因子的存在定理及应用

The Existence Theorems and Application of Some Special Complex Integrating Factor

结合一般复合型积分因子的存在定理,给出一阶微分方程的几种特殊复合型积分因子的存在条件,并验证了定理的有效性和可行性。

Combining with the existence theorems of general complex integrating factor, the existence theorems of some special types of complex integrating factor for a first order differential equation were given in this paper. The validity and feasibility of the theorems were validated well and truly by applying and illustrating by examples.