SECTORIAL OSCILLATION THEORY OF LINEAR DIFFERENTIAL EQUATIONS

In this paper, the sectorial oscillation of the solutions of higher order homo- geneous linear differential equationswith infinite order entire function coefficients is studied. Results are obtained to extend some results in [19] and [18].     

E-值亚纯函数的亏量和拟亏量

介绍从复平面C到无限维Banach空间E的E-值亚纯函数的Nevanlinna基本理论,研究E-值亚纯函数的亏量。定义了E-值亚纯函数的拟亏量和ρ(r)-拟亏量,建立了E-值亚纯函数的拟亏量和ρ(r)-拟亏量关系定理,推广了亚纯函数的相关结果。