中文摘要：

本文研究亚纯系数的高阶线性微分方程，当方程系数满足一定条件时，得到方程的每一非零亚纯解具有无穷级且超级为，n．此外，还研究了非齐次线性微分方程的亚纯解．

英文摘要：

In this paper,we investigate the higher order linear differential equations with meromor- phic coefficients. When the coefficients of the equation satisfy some conditions,we prove that every meromorphic solution f（z）（≠ O） of it is of infinite order and hyper-order n. In addition, we also consider meromorphic solutions of the nonhomogeneous linear differential equation.