ESTIMATION OF HYPER-ORDER OF SOLUTIONS TO HIGHER ORDER COMPLEX LINEAR DIFFERENTIAL EQUATIONS WITH ENTIRE COEFFICIENTS OF SLOW GROWTH.

Abstract

In this paper, we study the growth of meromorphic solutions of higher order linear di erential equations with entire coe cients and we obtain some estimations on the hyper-order and hyper convergence exponent of zeros of these solutions. We extend some results due to C. Y. Zhang, J. Tu [16]; L. Wang, H. Liu [14].