Nonhomogeneous linear differential polynomials generated by solutions of complex differential equations in the unit disc

Abstract

We consider the complex oscillation of nonhomogeneous linear di erential polynomials gk= Pk j=0 djf(j)+b, where dj (j=0; 1; : : : ; k) and b are meromorphic functions of nite [p,q]-order in the unit disc , generated by meromorphic solutions of linear di erential equations with meromorphic coe cients of nite [p,q]-order in .