Complex Oscillation of Solutions and Their Derivatives of Non-homogenous Linear Differential Equations in the Unit Disc

Abstract

In this paper, we study the complex oscillation of solutions and their derivatives of the differential equation f 00 + A (z) f 0 + B (z) f = F (z) , where A (z) , B (z) (6≡ 0) and F (z) (6≡ 0) are meromorphic functions of finite iterated p-order in the unit disc ∆ = {z : |z| < 1}.